These high-quality Button Head Hex Drive Screws are the perfect items when servicing your ARRMA vehicle.
- Product type: Button Head Hex Drive Machine Screw
- Manufacturer: ARRMA
- Manufacturer part number: AR721320
- Thread size: M3 (3mm metric diameter)
- Thread type: Machine thread
- Head type: Button head
- Head style: Hex drive / Socket head cap screw
- Length: 20mm
- Driver type: Hex socket (2.0mm or 2.5mm)
- Material: Steel
- Finish: Black
- Quantity per pack: 10 screws
- Compatible vehicle scales: 1/5, 1/7, 1/8, 1/10
- Compatible with: ARRMA Big Rock, Fury, Gorgon, Granite, Granite Boost, Kraton, Outcast, Quake, Senton, Senton Boost, Vorteks, Infraction, Mojave, Notorious, Talion, Typhon, Vendetta and other ARRMA models
Overview
The ARRMA Button Head Screw 3x20mm (10) is an essential spare parts pack for RC enthusiasts across the UK who own ARRMA vehicles. These precision-engineered fasteners are specifically designed for servicing and maintaining your RC car, buggy, or truck, making them an indispensable addition to any RC Model Shop customer's spare parts collection. Whether you're a seasoned RC competitor running brushless 4WD monster trucks, a weekend basher enjoying your 1/10 scale ready to run RC, or someone just getting started with RC hobbies, having quality replacement screws on hand ensures your vehicle stays in peak condition and performs at its best when you need it most.
Button head screws are the preferred fastening solution for precision RC work because their low-profile design sits flush with mounting surfaces, reducing aerodynamic interference and maintaining the clean lines of your RC car's chassis. The M3x20mm specification makes these screws compatible with a wide range of ARRMA models, from compact 1/10 scale short course trucks to larger 1/8 scale buggies and 1/7 scale desert trucks. This pack contains 10 individual screws, giving you plenty of spares for routine maintenance, repairs, or experimental builds where you might need to relocate components.
ARRMA's reputation for quality RC vehicles extends directly to their spare parts ecosystem, and these button head screws exemplify that commitment to excellence. When you're servicing your RC vehicle, you deserve fasteners that match the quality of your model, and these screws deliver exactly that standard.
Key Features
- Super-strong steel material — The screws are manufactured from high-quality steel that provides exceptional durability and longevity, ensuring they won't strip, shear, or deform under the stress of RC vehicle operation, whether you're running high-powered brushless systems or aggressive bashing on uneven terrain.
- Precision manufactured threads — Every screw features perfectly-engineered threads that engage cleanly and consistently with threaded inserts and mounting points on ARRMA vehicles, allowing for fast and easy maintenance without the frustration of cross-threading or wobbling fasteners.
- Button head hex drive design — The distinctive button head profile provides a clean, low-profile appearance while the integrated hex socket accepts standard hex drivers, making assembly and disassembly quick and straightforward whether you're performing regular maintenance or emergency field repairs at the track.
- Bagged in multiples for convenience — This pack supplies 10 screws per bag, ensuring you always have spare fasteners on hand for replacements, repairs, or when experimenting with different chassis configurations without needing to visit your local RC shop repeatedly.
- M3x20mm specification — The M3 metric diameter and 20mm length make these screws compatible with numerous ARRMA models across multiple scales and vehicle types, from 1/10 scale Granite and Senton trucks to 1/7 scale Infraction and Mojave vehicles.
Technical Performance
The M3x20mm button head screw represents a critical component in RC vehicle assembly and maintenance. The 3mm (M3) metric thread diameter is the industry standard for precision RC work, offering an excellent balance between holding strength and ease of installation without requiring excessive torque that might strip threaded inserts or damage mounting bosses. The 20mm length is specifically designed for ARRMA's mounting configurations, whether you're securing suspension arms, attaching body posts, securing electronics enclosures, or fastening internal chassis components. The button head design incorporates a low-profile rounded cap that sits flush or slightly proud of the mounting surface, minimising interference with moving parts and maintaining aerodynamic efficiency on high-speed RC cars. The precision-manufactured threads ensure that insertion is smooth and consistent, eliminating the frustration of sticky or rough fasteners that can damage expensive aluminium or composite parts. Steel construction provides superior strength compared to plastic fasteners or lower-grade metals, critical when you consider the forces involved in aggressive driving, high-speed acceleration, and rough terrain impacts typical of RC vehicle operation. These screws are compatible with standard 2.0mm or 2.5mm hex drivers, tools that most RC enthusiasts already have in their maintenance kit. The black finish protects against corrosion and maintains a professional appearance on your finished RC models.
What's in the Box
- 10 x Button Head Hex Drive Machine Screws (M3x20mm)
Frequently Asked Questions
- What ARRMA RC models are these button head screws compatible with? — These M3x20mm screws are compatible with a comprehensive range of ARRMA vehicles including 1/10 scale models such as the Big Rock, Fury, Gorgon, Granite, Granite Boost, Kraton, Outcast, Quake, Senton, Senton Boost, and Vorteks series in both 2WD and 4WD configurations. They also fit 1/5 scale models including the Kraton 8S and Outcast 8S, as well as 1/7 scale models like the Big Rock 6S, Felony 6S, Fireteam 6S, Infraction 6S, Limitless 6S and 120, and Mojave 6S. For 1/8 scale vehicles, compatibility extends across the Infraction, Kraton 6S, Mojave 4S, Notorious 6S, Outcast 6S, Talion 6S, Typhon, and Vendetta series. Whether you run a brushless or brushed model, RTR or roller, these screws will fit your ARRMA vehicle's mounting points.
- Why should I choose these ARRMA button head screws over generic fasteners? — ARRMA-branded screws are engineered specifically for ARRMA vehicle specifications and tolerances, ensuring perfect fitment, proper torque characteristics, and compatibility with all mounting inserts and bosses found on ARRMA models. Generic screws from hardware stores may have slightly different thread pitches, head dimensions, or material properties that could result in loose or overly tight fits, potentially damaging valuable components. Choosing OEM ARRMA parts guarantees authenticity and reliability.
- How many screws should I keep in my RC maintenance kit? — This pack of 10 screws provides an excellent starting point for your spare parts collection. Most routine maintenance tasks require only a few screws, but having 10 on hand means you can handle multiple repairs or replacements without running out. Many serious RC enthusiasts keep several packs available, particularly if they operate multiple ARRMA vehicles or compete regularly where spare parts are essential insurance against mechanical failures.
- Can I use these screws to modify or upgrade my ARRMA vehicle? — Yes, these button head screws are frequently used by RC enthusiasts experimenting with chassis modifications, alternative suspension geometry, or custom mounting configurations. The M3x20mm specification is standard across numerous ARRMA components, making these screws valuable for creative modifications and upgrades beyond simple maintenance and repair.
- What size hex driver do I need to install these screws? — These button head hex drive screws accept a 2.0mm or 2.5mm hex socket driver, depending on ARRMA's specific design for your vehicle model. Most RC shops sell multi-bit hex drivers that include these common sizes, and most RC enthusiasts already have appropriate tools in their maintenance kit. Using the correct size driver prevents stripping the socket and ensures smooth installation.
- Are these screws waterproof and suitable for wet conditions? — The steel construction and black finish provide excellent corrosion resistance, making these screws suitable for occasional wet driving. However, for extended water exposure or salt water use, regular cleaning and inspection is recommended to prevent rust development. If you regularly run in wet environments, consider rinsing your vehicle after each session and drying fasteners thoroughly.
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 Button Head Screw 3x20mm (10) 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.
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