- Brand: ARRMA
- Model Number: Z-ARA727420
- EAN Code: 5052127034296
- Part Number: ARA727420
- Screw Type: Flanged Button Head
- Thread Size: M4
- Length: 20mm
- Thread Type: Machine Thread
- Head Type: Button Head
- Driver Type: Hex Socket
- Colour: Black
- Pack Quantity: 6 pieces
- Compatible With: ARRMA 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR (C-ARA5810V2T1)
Overview
The ARRMA Flanged Button Head Screw M4x20mm is an essential fastening component for RC enthusiasts maintaining and building their ARRMA models. Whether you're a seasoned RC car UK competitor or a weekend basher looking to keep your vehicle in perfect working order, quality replacement screws are fundamental to reliable performance. This pack contains six precision-engineered flanged button head screws, each measuring M4x20mm, designed to meet ARRMA's exacting standards for durability and fit. These screws are particularly valuable for RC hobbyists in the UK who demand genuine OEM parts that guarantee compatibility with their ARRMA vehicles.
Button head screws with flanged design offer superior holding power compared to standard fasteners, making them ideal for critical mounting points on your RC machine. The flanged head provides a larger bearing surface, distributing load more effectively and reducing the risk of the screw pulling through softer materials. For anyone running an ARRMA ready to run RC model or building a custom setup, having a reliable supply of OEM screws ensures you can complete repairs quickly and maintain the integrity of your vehicle's construction.
ARRMA is renowned for producing high-quality RC components and accessories that stand up to the rigorous demands of off-road driving. These flanged button head screws are manufactured to the same exacting specifications as the factory components on your ARRMA vehicle, ensuring seamless integration and long-lasting performance whether you're racing, bashing, or enjoying casual drives.
Key Features
- M4x20mm Thread Size — The M4 metric thread with 20mm length provides the correct fastening solution for specific ARRMA assembly points, ensuring perfect fit without forcing or cross-threading.
- Flanged Button Head Design — The flanged head creates a larger contact surface than standard button head screws, distributing pressure more evenly and preventing the fastener from pulling through plastic or aluminium components on your RC model.
- Hex Driver Socket — These screws feature a recessed hex socket that accepts standard hex keys, providing secure grip and reducing the risk of stripping the screw head during installation or removal.
- Machine Thread Type — Precision machine threading ensures consistent engagement with threaded holes, delivering reliable fastening without slippage or wobbling under vibration and impact.
- Pack of Six — Each pack contains six screws, giving you multiple replacements for different assembly points or backup fasteners for future maintenance and repairs on your RC car.
- Black Finish — The black coating provides a professional appearance and offers minor corrosion resistance, important for maintaining aesthetics and longevity when exposed to dirt and moisture during off-road RC driving.
- OEM ARRMA Component — As genuine ARRMA parts, these screws are manufactured to factory specifications, guaranteeing compatibility with your ARRMA ready to run RC vehicle or custom build.
Technical Performance
The ARRMA Flanged Button Head Screw M4x20mm represents precision engineering at the component level. The M4 metric size is a common fastening point across multiple ARRMA RC car platforms, from entry-level brushless models to high-performance competition machines. The flanged button head design incorporates a wider base that sits flush against mounting surfaces, creating a larger bearing area that's particularly valuable when fastening into plastic housings or aluminium chassis components that could be damaged by the concentrated pressure of a standard socket head screw. The machine thread type ensures that when inserted into pre-threaded holes, the screw seats smoothly without binding, while the hex socket design allows precise torque application using a standard hex key, preventing over-tightening that could strip threads or under-tightening that could cause fastener creep. The black finish provides both aesthetic consistency with ARRMA's design language and minor protection against environmental exposure. Whether you're replacing fasteners that have vibrated loose during aggressive bashing, repairing components damaged during crashes, or building a custom RC car from component parts, these screws deliver the reliability and quality that serious RC hobbyists in the UK expect from genuine OEM parts.
What's in the Box
- ARRMA Flanged Button Head Screw M4x20mm (6 pieces)
Frequently Asked Questions
- What ARRMA RC models are compatible with M4x20mm flanged button head screws? — These screws are specifically listed as compatible with the ARRMA 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR, though they may be used on other ARRMA models with the same fastening points. Always verify your specific model's parts diagram to ensure correct screw specifications.
- Why choose flanged button head screws instead of standard socket head screws? — The flanged design provides a larger bearing surface that distributes pressure more evenly, making these screws ideal for fastening into plastic or softer materials where a smaller contact area could cause damage or pull-through over time.
- Can I use these screws as replacements if I've lost originals? — Yes, as genuine ARRMA OEM parts, these screws are designed as direct replacements for factory fasteners on compatible ARRMA RC models, ensuring perfect fit and reliability.
- What tools do I need to install these screws? — These screws feature a hex socket head, so you'll need a hex key (Allen key) of the appropriate size to install and remove them. Standard hex key sets include the size needed for M4 socket head screws.
- Are these screws suitable for all RC driving styles? — Yes, these precision-engineered fasteners are suitable for all RC driving conditions, from casual weekend cruising to competitive racing or aggressive bashing, maintaining secure assembly under all normal operating conditions.
- How many screws do I need? — This pack contains six screws, providing multiple replacements or backup fasteners for different assembly points on your ARRMA RC vehicle.
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 Flanged Button Head Screw, M4x20mm (6) Z-ARA727420 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.
We want to make sure your delivery goes smoothly, so here are some important details about our service:
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