- Manufacturer: ARRMA
- Part Number: Z-AR724403
- EAN: 5052127008730
- Product Type: Set Screw (Grub Screw)
- Thread Size: M4
- Length: 3mm
- Head Type: Grub (Recessed hex socket)
- Driver Type: Hex socket
- Thread Type: Machine thread
- Colour: Black
- Pack Contents: 10 pieces
- RRP: £4.99
Overview
The ARRMA Set Screw 4x3mm (10) Z-AR724403 is an essential spare part for RC car enthusiasts across the UK who demand reliable performance from their models. Whether you run an ARRMA RC car UK collection or maintain a fleet of RC vehicles for weekend bashing and competitive racing, these precision-engineered set screws are an indispensable component for secure assembly and reliable operation. Set screws are critical fasteners that lock components in place, preventing slippage and ensuring your RC car performs consistently on the track or off-road terrain.
As a dedicated RC hobby retailer, we understand that serious RC enthusiasts and beginners alike need access to genuine OEM spare parts that match the exacting standards of their models. The ARRMA brand has built a reputation for delivering high-quality RC vehicles and components, and these set screws are manufactured to the same rigorous standards. Whether you're rebuilding your RC car after a bash, performing routine maintenance, or replacing worn fasteners, having a pack of ten quality set screws ensures you'll always have spares on hand when you need them most.
These black machine thread set screws are designed specifically for ARRMA vehicles and components, offering the precision fit and reliable performance that competitive and casual RC car enthusiasts depend on. In the RC car UK market, choosing genuine parts from trusted retailers like RC Model Shop ensures your investment in quality RC equipment continues to perform at its best.
Key Features
- M4 Thread Size — These set screws feature M4 threading, which is a standard specification for ARRMA RC components, ensuring precise fit and compatibility with your ARRMA vehicle's fastening points and ensuring secure, vibration-resistant assembly.
- 3mm Length — The 3mm length specification makes these set screws ideal for grub screw applications where shorter fasteners are required, particularly for locking shafts, pulleys and gears into position on your RC car without protruding excessively.
- Hex Driver Type — The hex socket design allows for controlled tightening using standard hex Allen keys, providing excellent torque transfer and reducing the risk of stripping or damaging the screw head during assembly and maintenance of your RC vehicle.
- Grub Head Type — Grub screws feature a flush, recessed head that sits flush with the component surface, meaning they won't catch on other parts or create unnecessary drag, maintaining the aerodynamic and mechanical integrity of your RC car's assembly.
- Machine Thread Construction — Machine threading provides consistent, reliable engagement with threaded holes, delivering secure locking without relying on thread-locking adhesive, making these ideal for components that require regular adjustment and maintenance.
- Pack of 10 — This convenient pack contains ten individual set screws, ensuring you have multiple replacements on hand for your RC car collection, spares for future maintenance, and backup fasteners should any be lost or damaged during use.
- Black Finish — The black colour finish provides a professional appearance and helps these fasteners blend seamlessly with ARRMA vehicle components whilst offering corrosion resistance for outdoor RC car UK racing and bashing sessions.
Technical Performance
These ARRMA Set Screws represent precision fastening engineering designed specifically for the exacting demands of RC vehicle operation. The M4 thread specification combined with the 3mm length creates an optimal fastening solution for grub screw applications where secure locking of shafts, gears and pulleys is essential for consistent RC car performance. The hex socket design enables controlled application of torque using standard hex Allen keys, critical for avoiding over-tightening which could strip threads or damage delicate RC components. The machine thread construction delivers consistent engagement with pre-threaded holes, eliminating the need for thread-locking adhesive whilst maintaining the flexibility required for regular maintenance and adjustment. The black finish provides both aesthetic consistency with ARRMA vehicles and practical corrosion resistance, important for RC enthusiasts operating in varied UK weather conditions. Each screw in this pack of ten has been manufactured to ARRMA's quality standards, ensuring dimensional accuracy and thread consistency across the entire set. For serious RC car UK competitors and weekend bashers alike, having a reliable supply of genuine OEM set screws means you can keep your vehicles running reliably without the frustration of stripped fasteners or poor component engagement.
What's in the Box
- 10x ARRMA Set Screws M4 x 3mm with hex socket head
Frequently Asked Questions
- What are set screws used for on RC cars? — Set screws, also known as grub screws, are fasteners specifically designed to lock components like motor shafts, gear hubs, pulleys and drive couplings securely in place. Unlike conventional screws that pass through two components, set screws feature a cone or flat point that digs into a component's surface, creating a powerful mechanical lock that prevents slippage and rotation, which is essential for maintaining consistent performance in high-performance RC vehicles.
- Are these screws compatible with all ARRMA RC vehicles? — These M4 x 3mm set screws are genuine ARRMA spare parts designed for use with compatible ARRMA vehicle models. Before ordering, check your specific model's parts diagram to confirm that M4 x 3mm grub screws are the correct specification for your vehicle, as different ARRMA models may use different fastener sizes.
- Do I need thread-locking compound with these set screws? — The machine thread construction of these set screws provides reliable locking without requiring thread-locking adhesive, though some RC enthusiasts choose to apply light thread-locker compound for added security during high-vibration racing conditions. Always check your ARRMA manual for specific recommendations regarding fastener assembly.
- How often should I replace set screws on my RC car? — Set screws should be inspected regularly and replaced if they become stripped, damaged or lose their holding ability. For frequent bashers and competitive racers, inspecting fasteners as part of routine maintenance ensures components remain secure and performance remains consistent throughout the RC car UK racing season.
- What makes genuine ARRMA parts different from generic fasteners? — Genuine ARRMA parts like these set screws are engineered to precise specifications matching your vehicle's design, ensuring perfect fit and reliable performance. Generic fasteners may vary in thread consistency, material hardness and dimensional accuracy, potentially causing assembly issues or premature failure that could damage your RC vehicle during use.
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 Set Screw 4x3mm (10) Z-AR724403 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.
