- Part Type: Hardware — Button Head Flanged Screws
- Manufacturer: ARRMA
- Part Number: ARA727412
- EAN: 5052127032803
- Thread Type: Machine Thread
- Head Type: Washer Head / Button Head Flanged
- Thread Diameter: M4 (4mm)
- Overall Length: 18mm
- Thread Length: 18mm
- Head Height: 14mm
- Flange Diameter: 9.6mm
- Driver Type: Hex Socket
- Material: Steel
- Finish: Black
- Pack Contents: 4 x M4 x 18mm Button Head Flanged Screws
- Compatible Vehicles: ARRMA Felony 6S AVC, ARRMA Fireteam 6S, ARRMA Infraction 6S AVC, ARRMA Limitless 6S, ARRMA Mojave 6S, ARRMA Kraton 6S, ARRMA Notorious 6S, ARRMA Outcast 6S, ARRMA Talion 6S, ARRMA Typhon 6S and variants
Overview
The ARRMA Button Head Screw Flanged M4x18mm (4) is an essential replacement hardware component designed for RC enthusiasts who maintain and service their brushless RC vehicles across the UK. Whether you're running ARRMA's flagship 1/8 scale RC buggies, speed trucks, or the impressive 1/7 scale RC street bash models, these precision-engineered fasteners are the genuine OEM parts specified by the manufacturer for critical assembly points. These high-quality button head flanged screws provide ideal replacement parts for your kit-supplied items, ensuring your ready-to-run RC model maintains factory specifications and performance standards.
RC enthusiasts understand that maintaining authentic manufacturer components is crucial for reliability, fit accuracy, and long-term durability. The Button Head Screw Flanged M4x18mm delivers professional-grade fastening solutions that have been specifically engineered and tested by ARRMA for use across their entire range of high-performance brushless RC vehicles. From competitive racing setups to weekend bashing adventures, having the correct replacement screws on hand ensures minimal downtime and maximum enjoyment of your RC hobby investment.
This pack contains four individual screws, providing multiple replacement options or allowing you to service several assembly points in a single session. The flanged head design offers superior load distribution compared to standard screws, making these fasteners ideal for applications where clamping force and secure fastening are paramount in the dynamic, high-impact environment of competitive RC racing and bashing.
Key Features
- Strong and durable steel construction — Manufactured from premium steel material, these button head flanged screws deliver long-lasting performance even in demanding RC applications where vibration, impact, and repeated assembly cycles are commonplace in the world of brushless RC vehicles.
- Precision manufactured threads — Each screw features precision-engineered threads that ensure consistent fit tolerances, fast servicing capability, and reliable engagement with threaded holes across all ARRMA RC models, eliminating stripping and ensuring perfect alignment.
- M4 x 18mm specification — The metric 4mm diameter design with 18mm overall thread length is specifically sized to fit critical fastening points across the ARRMA vehicle range, including 1/8 scale buggies, speed trucks, and larger 1/7 scale brushless RC models.
- 9.6mm flanged button head configuration — The 9.6mm diameter flange provides superior load distribution and prevents the screw head from sinking into soft materials, essential for maintaining proper assembly geometry in plastic and composite housings found on modern brushless RC cars.
- Hex socket drive — The socket head design allows for clean, flush mounting and minimises the risk of stripped drive heads compared to traditional Phillips or slotted fasteners, critical for repeated maintenance on competition-grade RC vehicles.
- Black finish — The black coating provides corrosion resistance and matches factory-original ARRMA specifications, ensuring aesthetic consistency with your ready-to-run RC model and protecting against oxidation during storage between RC racing seasons.
Technical Performance
The Button Head Screw Flanged M4x18mm represents engineered fastening technology specifically developed for the high-vibration, high-impact environment of modern brushless RC racing. The precision-manufactured threads with consistent pitch ensure that each screw engages reliably with threaded holes without the loosening that occurs with inferior fasteners during aggressive off-road bashing or track racing sessions. The M4 diameter specification, combined with the 18mm overall length, positions this fastener as a critical component in the chassis, suspension, and drivetrain assemblies where secure fastening directly impacts handling characteristics and reliability. The 9.6mm flanged button head design acts as an integrated washer, distributing clamping forces across a wider surface area than standard hex head screws, preventing crushing or cracking of the plastic and composite materials used in ARRMA's chassis construction. The machine thread classification ensures compatibility with the factory-tapped holes across the entire ARRMA vehicle lineup, including the 1/8 scale Kraton, Notorious, Outcast, Talion, and Typhon buggies, as well as the larger 1/7 scale Felony, Infraction, Limitless, and Mojave models. The hex socket drive allows precise torque application without cam-out or damage to the screw head, critical when servicing vehicles that require consistent reassembly during competitive RC racing or regular maintenance intervals. With a thread length of 18mm, these screws provide sufficient grip depth in standard chassis materials whilst preventing bottoming out that could crack housing components.
What's in the Box
- 4 x M4 x 18mm Button Head Flanged Screws (black steel)
Frequently Asked Questions
- Which ARRMA RC models use these M4x18mm button head flanged screws? — These screws are specified for use across a comprehensive range of ARRMA brushless RC vehicles, including the 1/8 scale Kraton 6S, Notorious 6S, Outcast 6S, Talion 6S, and Typhon 6S buggies and speed trucks, as well as the larger 1/7 scale Felony 6S, Infraction 6S, Limitless 6S, and Mojave 6S models. They function as both standard parts and optional replacement components across multiple variants and RTR configurations.
- Why should I use genuine ARRMA replacement screws instead of generic fasteners? — Genuine ARRMA screws are engineered specifically for the materials, hole specifications, and assembly requirements of their vehicles. Generic fasteners may have slightly different pitch, head dimensions, or material properties that can result in poor fit, stripping, or unreliable fastening, particularly critical in high-vibration RC racing environments where precision component fitting directly impacts vehicle safety and performance.
- What is the 9.6mm flange on the button head, and why does it matter? — The 9.6mm diameter flange acts as an integrated washer, distributing the clamping load across a wider surface area than a standard hex head screw would provide. This prevents the screw head from sinking into plastic chassis materials, crushing housings, or cracking delicate components—particularly important given the impact forces experienced during aggressive RC bashing or competitive racing.
- Can I reuse these screws multiple times, or do they become damaged with repeated assembly? — The precision-manufactured threads and hardened steel construction allow these screws to be reused multiple times through normal service cycles. However, if you notice stripped threads, damaged heads, or difficulty achieving proper seating, replacement is recommended to maintain the mechanical integrity of your RC vehicle assembly.
- What size hex socket wrench do I need to install these screws? — The source material specifies a hex socket drive, though the exact socket size is not detailed in the manufacturer specifications provided. It is recommended to check your ARRMA vehicle's service documentation or contact RC Model Shop's expert team for the precise socket size required for safe installation.
- Are these screws suitable for beginners to RC hobbies? — Yes, these replacement screws are straightforward to install using a standard hex socket driver and require no special knowledge or tools beyond basic RC maintenance equipment. They are ideal replacement parts for beginners learning to service and maintain their ARRMA ready-to-run RC models.
- Why do I need four screws if I only need to replace one broken fastener? — The pack of four provides convenience for multiple scenarios: replacing a single damaged screw plus keeping spares for future maintenance, servicing multiple assembly points simultaneously during a complete chassis rebuild, or maintaining an inventory of commonly-needed fasteners for regular weekend RC bashing sessions.
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 Flanged M4x18mm (4) 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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