- Product type: Replacement fasteners
- Manufacturer: ARRMA
- Model number: ARA727308
- Part number: Z-ARA727308
- Screw size: M3x8mm
- Thread type: Machine thread
- Head type: Washer head (large head design)
- Thread diameter: M3 (3mm)
- Thread length: 8mm
- Driver type: Hex socket
- Material: Steel
- Colour: Black
- Pack contents: 4 screws
- EAN: 5052127032339
- Compatible with: ARRMA 1/7 Felony 6S BLX, ARRMA 1/7 Infraction 6S BLX, ARRMA 1/7 Limitless 6S
- Features: Large screw head for even spread of screw pressure, strong steel construction
Overview
The ARRMA Large Head Screws M3x8mm are essential replacement fasteners for RC car enthusiasts across the UK who demand reliability and precision in their machines. Whether you're maintaining a high-performance 1/7 scale brushless RC street basher or simply need to replace worn or lost fasteners, these premium steel screws deliver the quality you expect from ARRMA's aftermarket parts range. As a dedicated RC car UK specialist, we understand that having the right spare parts on hand is crucial for keeping your model running smoothly and avoiding downtime during crucial racing sessions or weekend bashing adventures.
These large head screws have been engineered to provide superior performance where standard fasteners fall short. The distinctive large screw head design ensures that pressure is distributed evenly across the mounting surface, reducing the risk of damage to plastic or softer materials commonly found on modern RC vehicles. This thoughtful engineering makes these screws ideal not just for repairs, but for builders and tuners who want to upgrade their existing setups with more robust fastening solutions. If you're building or maintaining ready to run RC models from ARRMA's impressive catalogue—including the legendary 1/7 Felony 6S AVC and Infraction 6S AVC platforms—then having a supply of quality replacement screws is simply good practice.
Each pack contains four screws, giving you the quantity you need for most common repairs and upgrades without excessive waste. The strong steel construction ensures these fasteners will withstand the rigours of competitive racing, high-speed bashing, and all-weather outdoor play that UK RC enthusiasts demand from their equipment.
Key Features
- Large screw-head design — The oversized head distributes fastening pressure evenly across the mounting surface, which is particularly important when securing components to plastic chassis plates or body panels that might otherwise crack or deform under concentrated point loads from standard screw heads.
- M3 thread specification — The M3 (3mm diameter) thread size matches the fastening requirements of numerous ARRMA RC vehicle models and other compatible platforms, making these screws versatile additions to any RC technician's parts bin.
- 8mm thread length — The 8mm thread length provides sufficient engagement depth for secure fastening without protruding excessively, ensuring proper fit in pre-drilled holes whilst maintaining clean, professional aesthetics on your finished model.
- Strong steel construction — Built from durable steel material, these screws resist stripping, corrosion, and mechanical failure during the intense vibrations and stresses experienced in high-performance RC applications, whether on tarmac, dirt, or grass surfaces common throughout the UK.
- Washer head design — The integrated washer head prevents sinking into softer materials and provides additional load-bearing surface, extending the lifespan of your RC model's chassis and body components.
- Hex driver compatibility — These screws feature a hex socket head, allowing precise, controlled tightening with standard RC hexagonal screwdrivers and tools found in most enthusiasts' workbenches.
Technical Performance
These M3x8mm large head screws represent ARRMA's commitment to providing high-quality replacement parts that match the engineering standards of their complete vehicle systems. The large head washer design is particularly significant—it functions as an integrated load distribution plate, spreading the clamping force across a wider area than conventional screw heads. This engineering choice directly addresses a common failure point in RC vehicles: plastic stress fractures around fastening points. By increasing the bearing surface area, these screws reduce concentrated stress and dramatically improve the longevity of plastic chassis plates found on the ARRMA 1/7 Felony 6S, Infraction 6S AVC, and Limitless 6S platforms. The M3 thread diameter has been precisely selected to match the mounting hole specifications on ARRMA's current generation models, ensuring perfect fit and optimal clamping force. The 8mm thread length accommodates the typical thickness of ARRMA chassis components whilst maintaining the correct thread engagement ratio—critical for preventing thread stripping and ensuring repeatable reassembly. Steel construction throughout provides exceptional hardness and fatigue resistance, essential properties when fasteners are subjected to the thousands of impact cycles that occur during high-speed bashing sessions or competitive racing events across British terrain. The hexagonal socket design allows controlled torque application, preventing over-tightening that could strip threads or crack plastic components, whilst ensuring sufficient tightness to maintain structural integrity during aggressive driving conditions.
What's in the Box
- 4 x Large Head Screw M3 x 8mm (black finish)
Frequently Asked Questions
- What ARRMA RC models are these large head screws compatible with? — These M3x8mm screws are confirmed compatible with the ARRMA 1/7 Felony 6S BLX, ARRMA 1/7 Infraction 6S BLX, and ARRMA 1/7 Limitless 6S models, though they may also fit other ARRMA vehicles with matching M3 fastening points. Check your vehicle's parts manual or contact our experts for model-specific confirmation.
- Why choose large head screws over standard screws? — The large head design distributes pressure across a significantly wider surface area, which is crucial when fastening to plastic components common in modern RC cars. This prevents the screw head from sinking into or cracking softer plastic materials, a problem frequently encountered with conventional screws on ready to run RC vehicles. The large head essentially acts as a built-in washer, protecting your chassis from damage whilst providing superior holding power.
- Are these screws suitable for beginners? — Yes, absolutely. If you're new to RC car maintenance and repair, these screws are excellent to keep on hand as spares. Their large head design actually makes them easier and safer to install, as they're less likely to damage plastic components during installation. Any RC hobbyist, whether beginner or experienced, will benefit from having quality replacement fasteners in their spares box.
- How many screws do I need? — Each pack contains four screws. Most minor repairs or component replacements require only one or two screws, so a single pack provides sufficient quantity for multiple repair jobs. Competitive racers and serious bashers often keep multiple packs on hand to ensure they're never caught without essential spares during events or race weekends.
- What tools do I need to install these screws? — You'll need a hexagonal screwdriver (hex key) that fits the M3 socket head. Most RC tool kits include the standard hex sizes required for ARRMA fasteners. We recommend using a proper RC screwdriver rather than improvised tools to avoid damaging the screw head during installation.
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 Large Head Screws, M3x8mm (4) Z-ARA727308 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:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
