Overview
The ARRMA M2.5x8mm Button Head Screw With M3 Head is an essential replacement and upgrade component for RC enthusiasts maintaining their ARRMA models. These precision-engineered screws are manufactured to OEM specifications and are ideal for owners of ARRMA 1/16 and 1/14 scale RC vehicles, including the popular GORGON GROM, Mini Kraton, MOJAVE GROM, QUAKE GROM and TYPHON GROM ranges. Whether you're a competitive racer looking to refresh worn fasteners, a weekend basher needing reliable spares, or someone building an RC car in the UK market for the first time, having quality replacement screws on hand ensures your model stays in peak condition.
This pack contains 10 individual button head screws, making it perfect for stockpiling spares or undertaking comprehensive maintenance on multiple vehicles. The M2.5x8mm specification with M3 head designation means these screws are specifically engineered for smaller-scale ARRMA models where precise fitment and secure fastening are critical. Button head screws feature a low-profile rounded head design that sits flush with components, reducing snagging and providing a cleaner aesthetic compared to traditional hex-head alternatives.
RC Model Shop stocks genuine ARRMA replacement parts to ensure your RC car UK setup maintains factory-standard performance and reliability. These screws are manufactured from quality materials and undergo rigorous quality control to meet ARRMA's demanding standards.
Key Features
- M2.5 Thread Size — The M2.5 specification provides the correct thread pitch for compatibility with ARRMA 1/16 and 1/14 scale models, ensuring secure fastening without cross-threading and reliable long-term durability even under high-vibration conditions typical of off-road RC driving.
- 8mm Length — The 8mm length is precisely engineered to reach critical fastening points on ARRMA GROM series vehicles, providing adequate thread engagement while avoiding over-penetration that could damage internal components or restrict movement of moving parts.
- M3 Head Design — The M3 head specification indicates a larger head diameter than standard M2.5 heads, distributing clamping force over a wider surface area and reducing the risk of the screw pulling through softer materials commonly used in RC plastic chassis designs.
- Button Head Profile — Button head screws feature a distinctive rounded, domed head shape that provides an ergonomic gripping surface for hex key insertion, reduces protrusions that could catch on terrain or internal components, and gives completed models a professional, finished appearance compared to traditional socket head cap screws.
- Machine Thread Construction — The machine thread design ensures consistent engagement with threaded holes, providing more reliable fastening than self-tapping alternatives and reducing the risk of hole damage when removing and reinstalling screws repeatedly during maintenance and tuning.
- Black Colour Finish — The black anodised finish provides a professional appearance that matches most ARRMA component colours, whilst also offering modest corrosion resistance to extend the lifespan of fasteners exposed to dirt, moisture and salt from off-road environments.
- Pack of 10 Pieces — Ten screws in each pack provide sufficient quantity for a complete structural refresh of your RC vehicle's fastening points, with extras for spares and future maintenance, making this an economical choice compared to purchasing screws individually.
Technical Performance
The ARRMA M2.5x8mm Button Head Screw With M3 Head represents precision engineering optimised for 1/16 and 1/14 scale RC vehicles where component size and weight are critical factors. These screws are manufactured from quality steel, offering excellent strength-to-weight ratio essential for maintaining vehicle performance without adding unnecessary mass. The M2.5 thread diameter is the industry standard for fastening smaller composite chassis components, suspension brackets and electronic mounting plates found on ARRMA GROM-series models including the GORGON, MOJAVE, QUAKE and TYPHON variants. The 8mm length provides optimal engagement depth for small-scale RC applications — sufficient to secure components firmly without protruding excessively into internal cavities or interfering with moving mechanisms. The M3 head specification delivers a larger bearing surface compared to standard M2.5 socket heads, crucial for preventing fasteners from pulling through soft plastic materials under the high vibrational loads and shock impacts characteristic of 4WD off-road RC driving. Button head configuration reduces overall profile, minimising potential snagging when the vehicle makes contact with rocks, vegetation or other terrain obstacles common in UK off-road RC environments. The machine thread design — as opposed to self-tapping variants — ensures consistent hold even after multiple removal and reinstallation cycles during routine maintenance, tuning adjustments and component upgrades typical of the RC car hobby. These screws have earned a perfect 5-star customer rating, demonstrating proven reliability and satisfaction among ARRMA model owners who depend on them for critical structural fastening applications.
What's in the Box
- 10 x ARRMA M2.5x8mm Button Head Screws with M3 Head
Compatibility
These screws are specifically engineered for the following ARRMA 1/16 and 1/14 scale models:
- ARRMA 1/16 GORGON GROM 4X4 RTR (all colour variants: Yellow, Bronze, Red)
- ARRMA 1/16 Mini Kraton 3S (all colour variants: Blue, Red, Teal)
- ARRMA 1/16 MOJAVE GROM 223S BLX 4X4 (all variants with or without Battery/Charger, White, Teal, Black)
- ARRMA 1/16 MOJAVE GROM MEGA 380 Brushed 4X4 (Blue, Red)
- ARRMA 1/16 MOJAVE GROM 4x4 RTA Race Kit (Battery and Charger Included)
- ARRMA 1/16 QUAKE GROM 4X4 RTR (all colour variants: Purple, Green, Red)
- ARRMA 1/14 TYPHON GROM 223S BLX 4X4 (all variants with or without Battery/Charger, Red, Silver, Blue)
- ARRMA 1/14 TYPHON GROM MEGA 380 Brushed 4x4 Buggy RTR (Blue/Silver, Red/White, and Pre-Owned variants)
Frequently Asked Questions
- What models use the M2.5x8mm Button Head Screw With M3 Head? — This screw is compatible with ARRMA 1/16 and 1/14 scale GROM-series models including the GORGON GROM, Mini Kraton 3S, MOJAVE GROM (both 223S BLX and MEGA 380 variants), QUAKE GROM, and TYPHON GROM. Check your vehicle's manual or contact RC Model Shop if you're unsure about compatibility with your specific model.
- Why do I need replacement screws for my ARRMA RC car? — RC vehicles experience constant vibration, impacts and shock loads during off-road driving that can loosen or damage fasteners. Replacement screws are essential for routine maintenance to maintain structural integrity, prevent components from shifting during driving, and ensure optimal performance and safety of your RC model.
- What is the difference between button head and other screw types? — Button head screws feature a rounded, domed head profile that sits lower than traditional socket head cap screws, reducing snag points on terrain and internal components. The M3 head designation means these particular screws have an unusually large head relative to their M2.5 thread size, providing extra clamping surface area ideal for securing components to soft plastic chassis materials.
- How many screws do I need? — This pack contains 10 screws, which is sufficient for a complete structural refresh of most ARRMA GROM-series vehicles. For comprehensive maintenance on multiple vehicles or to maintain a spare stock, you may wish to purchase multiple packs.
- Are these genuine ARRMA parts? — Yes, these are genuine ARRMA replacement components manufactured to OEM specifications. RC Model Shop is an authorised ARRMA dealer, ensuring you receive authentic parts with full compatibility guarantee.
- What is the black finish on these screws? — The black anodised finish provides a professional appearance matching most ARRMA component colours and offers modest corrosion resistance against dirt, moisture and salt exposure from off-road environments.
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 M2.5x8mm Button Head Screw With M3 Head (10) Z-ARA-1254 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.
