{"product_id":"dji-agras-t40-oem-centrifugal-sprinkler-thumb-nut-6-pcs","title":"DJI Agras T40 OEM Centrifugal Sprinkler Thumb Nut (6 Pcs)","description":"\u003cp\u003eThe DJI Agras T40 OEM Centrifugal Sprinkler Thumb Nut (6 Pcs) is a set of six hand-tightened wing-head fasteners used on the centrifugal sprinkler of the aircraft's spray system. Each one has a polished metal wing head that the fingers turn, a short threaded stud below it, and a washer seated under the head, so the sprinkler can be fastened and released at the boom without reaching for a tool. They belong to the spraying system, not to the airframe, propulsion or flight-control systems, and they are identified for the DJI Agras T40 and T20P. Operators usually find them while searching for a T40 sprinkler wing nut, a T20P centrifugal nozzle thumb screw, a lost sprinkler nut after cleaning, or a hand-twist nut for the T40 centrifugal nozzle. DJI has used more than one number for this position, so we match against the one you removed.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🇺🇸 U.S.A. FIRST\u003c\/h2\u003e\n\u003cp\u003eAres Acres LLC is a U.S.-based authorized DJI Agras retailer supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFREE \u0026amp; FAST Shipping is included for all U.S. customers.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.\u003c\/p\u003e\n\u003cp\u003eAres Acres also ships agricultural drone parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e✅ DJI Agras T40 \/ DJI Agras T20P Compatibility Guarantee\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e🇺🇸 USA Compatibility Guarantee\u003c\/li\u003e\n\u003cli\u003e👍🏻 Satisfaction Guarantee\u003c\/li\u003e\n\u003cli\u003e💵 Money Back Guarantee\u003c\/li\u003e\n\u003cli\u003e📦 Same Day Shipping \u0026amp; Tracking\u003c\/li\u003e\n\u003cli\u003eIdentified for the DJI Agras T40 and T20P, centrifugal sprinkler position\u003c\/li\u003e\n\u003cli\u003eMatched by wing-head shape, stud length and washer against the thumb nut you removed\u003c\/li\u003e\n\u003cli\u003eGenuine DJI OEM spray system hardware, brand new, six pieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe T40\/T20P sprinkler thumb nut, the T50 thumb nut and the T100 sprinkler thumb nut are separate parts for separate aircraft. If you want the match confirmed, photograph one of your remaining nuts from the side, so the stud and washer show, and send it to us — we will match it for you.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e📦 Package Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e6 × Centrifugal Sprinkler Thumb Nut — wing head, threaded stud and washer under the head\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a set of six fasteners.\u003c\/strong\u003e Each thumb nut is a single piece of hardware with its washer; the set is not an assembly and not a sprinkler kit.\u003c\/p\u003e\n\u003cp\u003eNot included: the centrifugal sprinkler itself, the sprinkler motor, the atomizing disc, the sprinkler mount or boom bracket, hoses, hose clamps, O-rings, seals, cables and any tools.\u003c\/p\u003e\n\u003cp\u003eNothing is included because it appears near the thumb nuts on the aircraft. If a different fastener on the sprinkler is missing, tell us where it sat and we will help you identify it.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔧 Component Overview\u003c\/h2\u003e\n\u003cp\u003eThe centrifugal sprinkler thumb nut is the small, bright metal fastener an operator touches every time the sprinkler comes off for cleaning. It has two flat wings on a round boss, a threaded stud that runs down from the centre, and a washer that sits between the head and whatever it clamps. It is turned by thumb and finger, which is the point of it.\u003c\/p\u003e\n\u003cp\u003eIts shape tells you its job. The part has three working areas:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe wing head\u003c\/strong\u003e — two polished, rounded wings that give the fingers enough leverage to tighten and release the nut without a driver or a spanner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe threaded stud\u003c\/strong\u003e — the short threaded section that engages the sprinkler hardware and carries the clamping load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe washer\u003c\/strong\u003e — the ring under the head that spreads the clamping load and gives the head a flat face to bear against\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause these nuts are made to come off by hand, they come off often. Centrifugal sprinklers are cleaned, inspected and refitted far more often than most parts of the aircraft, and each of those jobs puts the thumb nuts in an operator's hand, on a tailgate, in a pocket or in the grass.\u003c\/p\u003e\n\u003cp\u003eOver a working season the thumb nuts see:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChemical residue and wash water on every job\u003c\/li\u003e\n\u003cli\u003eVibration from the spinning sprinkler and from the aircraft itself\u003c\/li\u003e\n\u003cli\u003eRepeated removal and refitting during sprinkler cleaning\u003c\/li\u003e\n\u003cli\u003eTightening with pliers by operators in a hurry, which bends wings and galls threads\u003c\/li\u003e\n\u003cli\u003eLoss in the field when a nut is set down during cleaning and not found again\u003c\/li\u003e\n\u003cli\u003eDried residue that locks a nut onto its thread between jobs\u003c\/li\u003e\n\u003cli\u003eHeat on the trailer and in the sun between flights\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThumb nuts in this position are usually replaced for one of three reasons: one has been lost, one has been damaged by a tool, or one has backed off in flight and has not been noticed. The last of those is the one most often missed, and it is the one this part's diagnosis is built around.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\n\u003cp\u003eThe thumb nut's engineering role is retention. It holds the centrifugal sprinkler hardware firmly in place under hand-tightened clamping load, so the sprinkler stays where it was fitted while it spins and while the aircraft flies.\u003c\/p\u003e\n\u003cp\u003eIn the spray system it:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClamps the centrifugal sprinkler hardware at its fixing point\u003c\/li\u003e\n\u003cli\u003eLets the sprinkler be released and refitted by hand for cleaning and inspection\u003c\/li\u003e\n\u003cli\u003eSpreads its clamping load through the washer under its head\u003c\/li\u003e\n\u003cli\u003eHolds the fixing steady against sprinkler and aircraft vibration\u003c\/li\u003e\n\u003cli\u003eKeeps the cleaning routine tool-free in the field\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat it does not do matters as much:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt does not drive, power or control the sprinkler; the sprinkler motor and its electronics do that\u003c\/li\u003e\n\u003cli\u003eIt does not atomize spray or set droplet size; the spinning disc and the flight settings do that\u003c\/li\u003e\n\u003cli\u003eIt does not seal liquid; hoses, clamps and seals keep the spray mix inside the system\u003c\/li\u003e\n\u003cli\u003eIt carries no wiring and has no electrical function\u003c\/li\u003e\n\u003cli\u003eIt is not the T50 thumb nut or the T100 sprinkler thumb nut, which belong to different aircraft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat division of labour is why a missing or loose thumb nut rarely grounds the aircraft outright. It is also why its symptoms get credited to the parts it holds.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔍 Diagnosis — a sprinkler that is not held still looks like a sprinkler that is failing\u003c\/h2\u003e\n\u003cp\u003eA centrifugal sprinkler that rattles, vibrates or throws an uneven pattern sends most people straight to the expensive parts: the motor, the bearing, the disc. Those parts can fail. But a thumb nut that has backed off produces many of the same complaints, and it costs a minute to rule out.\u003c\/p\u003e\n\u003cp\u003eThe reason is simple. The sprinkler spins, and anything spinning that is not clamped firmly will move on its fixing. A thumb nut that has worked loose still sits on its thread, so at a glance it looks fitted. It is just not holding anything any more. The sprinkler shifts on its fixing, the vibration grows, and the symptom reads as a sprinkler fault.\u003c\/p\u003e\n\u003cp\u003eLeft alone, a loose thumb nut does not stay loose. It walks off its thread in flight and is gone, and the fixing it held then wears against the parts around it. A one-minute check becomes a lost nut and a worn fixing a few jobs later.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns a thumb nut has backed off:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA thumb nut that turns freely by finger without any tightening resistance\u003c\/li\u003e\n\u003cli\u003eA visible gap between the washer and the face it should bear against\u003c\/li\u003e\n\u003cli\u003eA sprinkler that can be rocked by hand on its fixing\u003c\/li\u003e\n\u003cli\u003eNew rattling or vibration from one sprinkler that was not there on the previous job\u003c\/li\u003e\n\u003cli\u003eOne sprinkler pattern that looks different from the others on the same aircraft\u003c\/li\u003e\n\u003cli\u003eA bright wear mark on the face under a washer, where the head has been moving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBefore condemning the sprinkler, rule out what imitates it:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA loose or missing thumb nut\u003c\/strong\u003e — check every thumb nut on every sprinkler by hand; this is the cheapest check on the spray system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResidue built up on the disc\u003c\/strong\u003e — an unevenly fouled disc runs out of balance; clean it and test again\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA damaged or bent atomizing disc\u003c\/strong\u003e — a disc that has struck something wobbles whatever holds it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA worn sprinkler motor or bearing\u003c\/strong\u003e — rough rotation by hand with the sprinkler held firmly points at the motor, not the fastener\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUse the other sprinklers as your reference.\u003c\/strong\u003e With the aircraft powered down, try each thumb nut by hand. A correctly fitted nut needs a deliberate turn to move; a backed-off one spins. Compare the washer seating on the suspect sprinkler with the ones that behave.\u003c\/p\u003e\n\u003cp\u003eClear those checks first, while the sprinkler is still on the aircraft and that information is still cheap. If a thumb nut is missing, has bent wings, has damaged threads, or will not stay tight, replace it rather than flying on it.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Common Replacement Indicators\u003c\/h2\u003e\n\u003cp\u003eReplace a thumb nut when inspection confirms one of these:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe nut is missing after cleaning, transport or a flight\u003c\/li\u003e\n\u003cli\u003eA wing is bent, cracked or flattened from tightening with pliers\u003c\/li\u003e\n\u003cli\u003eThe stud threads are galled, flattened or cross-threaded\u003c\/li\u003e\n\u003cli\u003eThe nut will not hold its tightness and backs off again after refitting\u003c\/li\u003e\n\u003cli\u003eThe washer is missing, distorted or no longer sits flat under the head\u003c\/li\u003e\n\u003cli\u003eCorrosion or residue that will not clean off the thread\u003c\/li\u003e\n\u003cli\u003eA head that slips on its stud or wobbles on it\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInspect these first, because they produce similar symptoms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe atomizing disc, for residue build-up and impact damage\u003c\/li\u003e\n\u003cli\u003eThe sprinkler motor and its bearing, by turning the disc by hand\u003c\/li\u003e\n\u003cli\u003eThe sprinkler mount and boom fixing for cracks\u003c\/li\u003e\n\u003cli\u003eThe mating thread or fixing the thumb nut engages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThere is no published service interval for these thumb nuts. They are replaced when they are lost, damaged or will not hold, not on a schedule. A set of six means a spare is on hand when one goes missing in the field.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e📐 Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProduct name:\u003c\/strong\u003e DJI Agras T40 OEM Centrifugal Sprinkler Thumb Nut (6 Pcs)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI family:\u003c\/strong\u003e Agras\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary aircraft:\u003c\/strong\u003e DJI Agras T40\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso identified for:\u003c\/strong\u003e DJI Agras T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment basis:\u003c\/strong\u003e Identified for the DJI Agras T40 and T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAircraft system:\u003c\/strong\u003e Spraying — centrifugal sprinkler hardware\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent type:\u003c\/strong\u003e Hand-tightened wing-head thumb nut\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial number:\u003c\/strong\u003e DJI has used more than one number for this position, so we match against the one you removed\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity:\u003c\/strong\u003e 6 thumb nuts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eForm:\u003c\/strong\u003e Polished wing head with two rounded wings, threaded stud below the head, washer seated under the head\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal, polished finish; grade not published for this part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eColour:\u003c\/strong\u003e Bright polished silver\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThread size:\u003c\/strong\u003e Not published for this part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e Not published for this part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Not published for this part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical:\u003c\/strong\u003e None — mechanical fastener with no wiring\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting position:\u003c\/strong\u003e Centrifugal sprinkler fixing on the spray boom\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation method:\u003c\/strong\u003e Threaded on and tightened by hand\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHardware included:\u003c\/strong\u003e Six thumb nuts, each with its washer\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService adjustability:\u003c\/strong\u003e None — the part is correct or it is not, with no adjustment or app setting that compensates\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClassification:\u003c\/strong\u003e DJI OEM spray system hardware\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🛠️ Installation \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBefore installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower the aircraft down and remove the battery\u003c\/li\u003e\n\u003cli\u003eRinse the sprinkler and its fixing so you are not working in chemical residue\u003c\/li\u003e\n\u003cli\u003eWear gloves; the nuts and fixings carry spray residue\u003c\/li\u003e\n\u003cli\u003ePhotograph the sprinkler in place, so the fixing and any hoses are on record\u003c\/li\u003e\n\u003cli\u003eCompare a new thumb nut with one of your remaining nuts: wing shape, stud length and washer\u003c\/li\u003e\n\u003cli\u003eWork over a tray or a cloth so a nut that drops cannot roll away\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDuring installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemove any damaged thumb nut by hand; if residue has locked it, soak and clean it rather than forcing it with pliers\u003c\/li\u003e\n\u003cli\u003eClean the mating thread and the face the washer bears against\u003c\/li\u003e\n\u003cli\u003eCheck the mating thread for damage; a new nut will not hold on a stripped thread\u003c\/li\u003e\n\u003cli\u003eSeat the washer under the head and start the thread by hand, square, without forcing\u003c\/li\u003e\n\u003cli\u003eTighten by hand until the washer seats firmly; DJI does not publish a torque figure for this fastener, so do not use pliers or a spanner on the wings\u003c\/li\u003e\n\u003cli\u003eFit the remaining nuts on that sprinkler the same way, so the clamping is even\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAfter installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTry the sprinkler by hand; it should not rock on its fixing\u003c\/li\u003e\n\u003cli\u003eTry each thumb nut; it should need a deliberate turn to move\u003c\/li\u003e\n\u003cli\u003eCheck that hoses and cables near the sprinkler are clear of the spinning disc\u003c\/li\u003e\n\u003cli\u003eRun the sprinkler briefly with the aircraft safely restrained and listen for rattles\u003c\/li\u003e\n\u003cli\u003eCheck the thumb nuts again after the first job\u003c\/li\u003e\n\u003cli\u003eStore the spare nuts somewhere they will be found in the field\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance between jobs.\u003c\/strong\u003e Each time the sprinklers are cleaned, wipe residue off the thumb nut threads and washers before refitting, so they do not lock on between jobs. Never tighten them with a tool. After any job where a sprinkler sounded different, try every thumb nut by hand before the next flight — a nut that spins is the cheapest early warning this part gives.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🚜 Necessary For\u003c\/h2\u003e\n\u003cp\u003eThese thumb nuts are for operators and technicians who keep T40 and T20P centrifugal sprinklers clean and fastened:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDJI Agras T40 operators who have lost a sprinkler thumb nut during cleaning\u003c\/li\u003e\n\u003cli\u003eDJI Agras T20P operators (identified fitment)\u003c\/li\u003e\n\u003cli\u003eCommercial spray applicators who clean sprinklers every day and want spares on the trailer\u003c\/li\u003e\n\u003cli\u003eAgras service centres and repair technicians restoring spray systems\u003c\/li\u003e\n\u003cli\u003eFleet managers replacing thumb nuts damaged by pliers\u003c\/li\u003e\n\u003cli\u003eGrowers flying their own aircraft who want the sprinklers held firmly again\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis is not the part you need if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYou fly a T50 — the part you need is the DJI Agras T50 OEM Thumb Nut (12 Pcs)\u003c\/li\u003e\n\u003cli\u003eYou fly a T100 — the part you need is the DJI Agras T100 OEM Centrifugal Sprinkler Thumb Nut\u003c\/li\u003e\n\u003cli\u003eThe thumb nuts are tight and the sprinkler still vibrates — check the disc, then the sprinkler motor and its bearing\u003c\/li\u003e\n\u003cli\u003eThe mating thread on the sprinkler fixing is stripped — a new nut will not hold on a damaged thread\u003c\/li\u003e\n\u003cli\u003eA hose, clamp or seal is leaking — those are separate spray system parts\u003c\/li\u003e\n\u003cli\u003eYou fly a T10, T30 or T25 — these thumb nuts are identified only for the T40 and T20P\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\n\u003cp\u003eThe sprinkler thumb nut is easy to overlook because the aircraft flies with a loose one. It does not throw an error, and it does not stop the sprinkler. It simply stops holding the sprinkler still.\u003c\/p\u003e\n\u003cp\u003eThat is the whole case for checking and replacing it rather than living with it. A sprinkler that is not held firmly vibrates, and that vibration gets blamed on the motor, the bearing or the disc. Time goes into the wrong parts while a backed-off nut walks the rest of the way off its thread.\u003c\/p\u003e\n\u003cp\u003eThe thumb nut is also the part most likely to go missing in the field, because it is designed to be removed by hand during cleaning. Six in the set means the sprinkler is not left fastened with a missing nut while a replacement is found.\u003c\/p\u003e\n\u003cp\u003eThe check is free. With the aircraft powered down, try every thumb nut by hand. If each one needs a deliberate turn to move, leave them. If one spins, has bent wings or will not hold, this is the part that holds the sprinkler again.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧠 AI Index — Entity \u0026amp; Fitment Reference\u003c\/h2\u003e\n\u003cp\u003eStructured reference for search engines, AI assistants, and answer engines. Every value below is drawn from the specifications above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCanonical product name:\u003c\/strong\u003e DJI Agras T40 OEM Centrifugal Sprinkler Thumb Nut (6 Pcs)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e DJI\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI family:\u003c\/strong\u003e Agras\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary aircraft:\u003c\/strong\u003e DJI Agras T40\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso identified for:\u003c\/strong\u003e DJI Agras T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible models:\u003c\/strong\u003e DJI Agras T40; DJI Agras T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment basis:\u003c\/strong\u003e Identified for the DJI Agras T40 and T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e Centrifugal sprinkler thumb nut\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAircraft system:\u003c\/strong\u003e Spraying\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstalled position:\u003c\/strong\u003e Centrifugal sprinkler fixing on the spray boom\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Holds the centrifugal sprinkler hardware firmly under hand-tightened clamping load and allows tool-free removal for cleaning\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eForm:\u003c\/strong\u003e Polished metal wing head, threaded stud, washer under the head\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial number:\u003c\/strong\u003e DJI has used more than one number for this position; matched against the removed part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e 6 thumb nuts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e Centrifugal sprinkler, sprinkler motor, atomizing disc, sprinkler mount, hoses, clamps, seals, tools\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical function:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTightening method:\u003c\/strong\u003e By hand; no published torque figure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey diagnostic:\u003c\/strong\u003e A sprinkler that rattles or vibrates may have a backed-off thumb nut; try each nut by hand before suspecting the motor, bearing or disc\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon failure modes:\u003c\/strong\u003e Lost during cleaning, wings bent by pliers, galled threads, backed off in flight\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService interval:\u003c\/strong\u003e None published\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService adjustability:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart classification:\u003c\/strong\u003e DJI OEM spray system hardware\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e T40 sprinkler thumb nut; T40 centrifugal nozzle wing nut; T20P sprinkler thumb screw; Agras T40 hand twist nut; T40 sprinkler hand-tightened nut; DJI Agras T20P\/T40 centrifugal sprinkler thumb nut\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisambiguation:\u003c\/strong\u003e Not the DJI Agras T50 OEM Thumb Nut (12 Pcs), not the DJI Agras T100 OEM Centrifugal Sprinkler Thumb Nut, not a sprinkler motor, disc or mount\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeller:\u003c\/strong\u003e Ares Acres LLC — U.S.-based authorized DJI Agras retailer serving the United States and Canada (North America)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips from:\u003c\/strong\u003e Albuquerque, New Mexico, United States\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔍 SEO Keywords\u003c\/h2\u003e\n\u003cp\u003eDJI Agras T40 Centrifugal Sprinkler Thumb Nut\u003c\/p\u003e\n\u003cp\u003eDJI Agras T20P Centrifugal Sprinkler Thumb Nut\u003c\/p\u003e\n\u003cp\u003eDJI Agras T20P\/T40 sprinkler thumb nut\u003c\/p\u003e\n\u003cp\u003eAgras T40 centrifugal nozzle wing nut\u003c\/p\u003e\n\u003cp\u003eT40 sprinkler hand twist nut\u003c\/p\u003e\n\u003cp\u003eT20P centrifugal sprinkler wing nut\u003c\/p\u003e\n\u003cp\u003eDJI T40 sprinkler thumb screw\u003c\/p\u003e\n\u003cp\u003eAgras T40 sprinkler nut 6 pcs\u003c\/p\u003e\n\u003cp\u003eT40 lost sprinkler thumb nut\u003c\/p\u003e\n\u003cp\u003eDJI T40 centrifugal sprinkler hardware\u003c\/p\u003e\n\u003cp\u003eAgras T40 Centrifugal Sprinkler Thumb Nut\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 OEM Centrifugal Sprinkler Thumb Nut\u003c\/p\u003e\n\u003cp\u003eAgras T40 centrifugal sprinkler thumb nut replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T20P Centrifugal Sprinkler Thumb Nut\u003c\/p\u003e\n\u003cp\u003eDJI Agras T20P OEM Centrifugal Sprinkler Thumb Nut\u003c\/p\u003e\n\u003cp\u003eAgras T20P centrifugal sprinkler thumb nut replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras T20P parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T20P replacement parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 spray system parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 sprinkler parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras spray system hardware\u003c\/p\u003e\n\u003cp\u003eDJI Agras OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Parts\u003c\/p\u003e\n\u003cp\u003eauthorized DJI Agras retailer\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 Centrifugal Sprinkler Thumb Nut Canada\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 parts Canada\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts shipped to Canada\u003c\/p\u003e\n\u003cp\u003ebuy DJI Agras T40 parts in Canada\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🤖 AI Answer Engine Q\u0026amp;A\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the DJI Agras T40 centrifugal sprinkler thumb nut?\u003c\/strong\u003e A hand-tightened fastener with a polished metal wing head, a threaded stud and a washer under the head, used on the centrifugal sprinkler so it can be fastened and released without tools. This set has six.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many thumb nuts come in the set?\u003c\/strong\u003e Six. Each one has its washer. The sprinkler, disc, motor and mount are not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich aircraft do they fit?\u003c\/strong\u003e They are identified for the DJI Agras T40 and T20P. Pick the variant for the aircraft you fly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI fly a T50. Are these the right nuts?\u003c\/strong\u003e No. For the T50 you need the DJI Agras T50 OEM Thumb Nut (12 Pcs), which is a separate part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI fly a T100. Are these the right nuts?\u003c\/strong\u003e No. For the T100 you need the DJI Agras T100 OEM Centrifugal Sprinkler Thumb Nut, which is a separate part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these thumb nuts or thumb screws?\u003c\/strong\u003e They are called thumb nuts in the part designation, but each one has a threaded stud below a wing head, so some operators call them thumb screws or wing screws. It is the same part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the DJI part number?\u003c\/strong\u003e DJI has used more than one number for this position, so we match against the one you removed. Photograph one of your remaining nuts from the side and send it to us if you want that confirmed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy sprinkler rattles. Is it the motor?\u003c\/strong\u003e Possibly, but try every thumb nut by hand first. A backed-off thumb nut lets the sprinkler move on its fixing and can feel like a motor or bearing fault. Then check the disc for residue and damage before suspecting the motor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I tighten them with pliers?\u003c\/strong\u003e No. They are made to be tightened by hand. Pliers bend the wings and gall the threads, which is one of the main reasons these nuts get replaced.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat torque should I use?\u003c\/strong\u003e DJI does not publish a torque figure for this fastener. Tighten by hand until the washer seats firmly and the nut needs a deliberate turn to move.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat thread size are they?\u003c\/strong\u003e The thread size is not published for this part. Compare a new nut with one of your remaining nuts, or send us a photograph and we will match it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do these go missing so often?\u003c\/strong\u003e They come off by hand every time the sprinkler is cleaned, so they get set down on tailgates, in pockets and in the grass. Keep the spares in the set somewhere you will find them in the field.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill a new thumb nut fix a stripped thread on the sprinkler?\u003c\/strong\u003e No. A new nut needs a sound mating thread to hold. If that thread is damaged, the fixing it belongs to needs attention.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I fit them myself?\u003c\/strong\u003e Yes. Clean the thread, seat the washer under the head, start the thread by hand, tighten by hand until the washer seats, and check each nut again after the first job.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a service interval?\u003c\/strong\u003e No. Replace a thumb nut when it is lost, its wings or threads are damaged, or it will not stay tight. Try them by hand every time the sprinkler is cleaned.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they fit the T30 or T10?\u003c\/strong\u003e They are identified only for the T40 and T20P. Do not fit them to other Agras models on the strength of a similar shape.\u003c\/p\u003e","brand":"Ares Acres","offers":[{"title":"DJI T40","offer_id":68077795475776,"sku":null,"price":69.99,"currency_code":"USD","in_stock":true},{"title":"DJI T20P","offer_id":68077795508544,"sku":null,"price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/dji-agras-t40-oem-centrifugal-sprinkler-thumb-nut-6-pcs-1.png?v=1794316507","url":"https:\/\/aresacres.com\/pt\/products\/dji-agras-t40-oem-centrifugal-sprinkler-thumb-nut-6-pcs","provider":"Ares Acres","version":"1.0","type":"link"}