Overview
The ARRMA Cap Head Hex Machine Screw 3x20mm (4) Z-AR723320 is an essential replacement part for owners of ARRMA RC vehicles across multiple scales and models. Whether you are maintaining a 1/10 scale monster truck, a 1/8 buggy, or a larger 1/5 or 1/7 scale speed truck, these high-quality fasteners are designed to keep your RC car UK-ready and performing at its best. These cap head hex machine screws are precision-engineered replacement components that come directly from ARRMA, the manufacturer, ensuring perfect compatibility and reliability with your ready to run RC vehicles.
Cap head hex machine screws are fundamental components in any RC vehicle, securing critical parts of the chassis, suspension, and body assemblies. Over time, through regular use, maintenance, and rebuilds, these screws can wear out, become lost, or require replacement due to damage. Having a supply of genuine ARRMA replacement screws on hand ensures you can quickly get your brushless RC truck, buggy, or stunt vehicle back on track without waiting for parts or compromising on quality. For dedicated RC enthusiasts in the UK who regularly bash, race, or compete with their ARRMA models, maintaining a stock of replacement fasteners is simply good practice.
This pack delivers exactly what serious RC hobbyists need: four genuine M3x20mm cap head hex machine screws manufactured to ARRMA's exacting standards. The precision-threaded design ensures smooth installation and removal, whilst the durable steel construction guarantees longevity even in demanding conditions. Whether you own an ARRMA 1/10 Granite, Senton, Vorteks, Kraton, Outcast, or any of the larger 1/5, 1/7, or 1/8 scale models listed in the comprehensive compatibility matrix, these replacement screws will serve you reliably.
Key Features
- Super-strong steel construction — These cap head hex machine screws are manufactured from high-quality steel that resists corrosion, bending, and stripping, ensuring they maintain their integrity through countless assembly and disassembly cycles, regardless of whether you are running your RC car in wet UK conditions or dry terrain.
- Precision manufactured threads — The threads are precision-engineered to deliver a fast and easy fit every time you install or reinstall these screws, reducing assembly time and eliminating the frustration of cross-threaded or poorly fitting fasteners that can compromise the structural integrity of your RC vehicle.
- Hex head fitting for hassle-free servicing — The hexagonal head design allows you to use a standard hex key (Allen key) for installation and removal, providing a secure grip that prevents slippage and makes repeat servicing and maintenance of your brushless RC truck, buggy, or other ARRMA model straightforward and reliable.
- M3x20mm metric specification — These screws conform to the M3x20mm metric standard, which is the exact size specified as original equipment on numerous ARRMA models ranging from 1/10 scale to 1/7 scale vehicles, guaranteeing perfect fit and function.
- Pack of 4 genuine ARRMA parts — Each pack contains four individual M3x20mm cap head hex machine screws, providing you with multiple replacement fasteners to cover several maintenance or repair needs, or to keep as spares for future use.
- Wide compatibility across ARRMA range — These screws are listed as compatible with numerous ARRMA models including the 1/10 Big Rock, Gorgon, Granite, Senton, Vorteks, Kraton, Outcast, the 1/8 Kraton, Notorious, Outcast, Talion, Typhon, Infraction, Mojave, and the larger 1/5 and 1/7 scale trucks, making them a versatile addition to any ARRMA owner's spare parts collection.
Technical Performance
The ARRMA Cap Head Hex Machine Screw 3x20mm represents the standard of fastener quality that ARRMA engineers specify for their complete range of ready to run RC vehicles. At M3 diameter with a 20mm overall length, these screws are engineered to secure structural components, suspension mounts, body posts, and chassis assemblies across multiple scales of ARRMA RC models. The metric M3x20mm specification ensures compatibility across the entire ARRMA catalogue, from the compact 1/10 scale stadium trucks like the Senton and Vorteks, through the mid-range 1/8 scale buggies and trucks including the Kraton, Notorious, Talion, and Outcast, up to the larger 1/5 scale Kraton and 1/7 scale models including the Limitless, Infraction, Mojave, and Felony. The steel construction provides the mechanical strength required to withstand the forces generated by brushless motors, high-speed impacts, and the repetitive stress of bashing and competitive racing. The precision-manufactured threads eliminate the common problems of stripped screws and cross-threading that plague lower-quality fasteners, whilst the cap head design with hex socket provides a secure, non-slip interface that protects against tool slippage and screw head damage. These are genuine ARRMA original equipment replacement parts, not generic fasteners, which means they have been tested and verified to meet the exact specifications required by ARRMA engineers for optimal fit, function, and durability across the full range of vehicles that specify them as replacement parts.
What's in the Box
- 4 x M3x20mm cap head hex machine screws
Frequently Asked Questions
- Will these ARRMA screws fit my 1/10 RC car UK model? — Yes, the M3x20mm cap head hex machine screws are compatible with numerous ARRMA 1/10 scale models including the Big Rock, Granite, Gorgon, Senton, Vorteks, Kraton, and Outcast, as listed in the comprehensive compatibility matrix provided by ARRMA. Always verify your specific model number against the fitment list to confirm compatibility.
- Are these genuine ARRMA replacement parts? — Yes, these are authentic ARRMA original equipment replacement screws, identified by the official ARRMA part number AR723320. They are manufactured to the exact standards specified by ARRMA and are the correct replacement fasteners for numerous ARRMA vehicles across multiple scales.
- What size hex key do I need to install these screws? — These cap head hex machine screws feature a hexagonal socket head designed for use with a standard metric hex key (Allen key). The exact size of the hex key required is not specified in the technical documentation provided, so we recommend checking your vehicle's assembly manual or contacting ARRMA support for the precise hex key size.
- Can I use these screws on 1/8, 1/7, and 1/5 scale ARRMA models? — Yes, the M3x20mm specification is used across multiple ARRMA scales. These screws are listed as compatible with 1/8 scale models including the Kraton, Notorious, Outcast, Talion, Typhon, Infraction, and Mojave, with 1/5 scale models including the Kraton and Outcast, and with 1/7 scale models including the Big Rock, Felony, Fireteam, Infraction, Limitless, and Mojave. Verify your specific model in the fitment list before purchasing.
- How many screws come in each pack? — Each pack contains 4 individual M3x20mm cap head hex machine screws, providing multiple replacement fasteners for maintenance, repair, or future use.
- Why would I need replacement screws for my RC car? — Regular maintenance, rebuilds, and repairs of your brushless RC truck or buggy require frequent removal and reinstallation of fasteners. Over time, screws can become stripped, corroded, or lost through impact damage or aggressive bashing. Keeping a supply of genuine ARRMA replacement screws ensures you can quickly restore your vehicle to full working order without compromising on quality or compatibility.
- Are these screws suitable for wet weather RC bashing in the UK? — The steel construction of these cap head hex machine screws provides good corrosion resistance for outdoor use, though they are not plated or coated with additional protective finishes. For long-term storage or prolonged exposure to damp conditions, store screws in a dry environment or consider light coating with oil to prevent corrosion.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the ARRMA Cap Head Hex Machine Screw 3x20mm (4) Z-AR723320 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
