- Part Number: Z-LOSA6256
- EAN: 660132006150
- Screw Size: 4-40
- Length: 1/2 inch
- Head Type: Button Head Cap
- Driver Type: Hex
- Thread Type: Machine Thread
- Colour: Black
- Quantity: 6 screws
- Manufacturer: Losi
Overview
The Losi 4-40 x 1/2 Button Head Cap Screw (6) Z-LOSA6256 is an essential replacement part for RC enthusiasts and competitive racers across the UK. Whether you're maintaining your Losi RC car, repairing damage from a crash, or simply restocking your spare parts box, these precision-engineered fasteners are exactly what you need. As anyone involved in RC hobby knows, small components like screws are critical to keeping your model running smoothly and safely.
Losi is a recognised leader in the RC industry, producing high-quality vehicles and components for everything from casual bashers to serious competition drivers. These button head cap screws are manufactured to Losi's exacting standards, ensuring compatibility and reliability with your RC model. Available online at RC Model Shop, this six-pack gives you multiple spares to cover maintenance needs or build projects without needing to reorder frequently.
For RC car UK owners and hobbyists, having the right spare parts on hand is essential to maximising your model's lifespan and keeping it performing at its best. This pack of six screws offers excellent value and peace of mind, whether you're a weekend basher, a track racer, or someone building a custom setup.
Key Features
- Precise 4-40 Thread Specification — This fastener uses a 4-40 machine thread, which is a standard sizing in RC applications, ensuring perfect compatibility with Losi RC models and many other RC vehicles that utilise this common thread size.
- Button Head Design — The button head cap style provides a clean, low-profile appearance while offering excellent grip when using a hex driver, making installation and removal straightforward during maintenance or repairs.
- Hex Driver Socket — Compatibility with standard hex tools means you can install and remove these screws quickly using common hex keys, a feature that most RC enthusiasts already have in their toolbox.
- Machine Thread Construction — These are machine screws with a precisely cut thread pattern, offering superior holding power and reliability compared to rolled threads, which is critical for vibration-prone RC applications.
- Black Finish — The black colour coating provides a professional appearance whilst offering a degree of corrosion resistance, helping these fasteners maintain their integrity through regular use and storage.
- Six-Pack Quantity — This pack contains six individual screws, giving you extras for repair, maintenance, or spare parts inventory, reducing the need for frequent reordering and ensuring you're never caught short.
Technical Performance
The Losi 4-40 x 1/2 Button Head Cap Screw represents precision engineering in fastener design. At 4-40 sizing, this screw features a 1/2 inch length, making it suitable for a wide range of assembly points on Losi RC models and compatible RC vehicles. The machine thread specification ensures consistent, reliable engagement with corresponding threaded holes, providing the holding strength necessary for vibration-prone RC applications where fasteners must withstand repeated acceleration, deceleration, and impact forces. The button head cap design allows for efficient torque application using standard hex keys, whilst the compact head profile means screws sit flush with components without protruding unnecessarily. The black finish is applied to help resist oxidation and maintain appearance over extended storage and use. For anyone maintaining or repairing RC cars in the UK, whether indoors or outdoors, having quality OEM fasteners like these ensures your model maintains factory specifications and performance standards.
What's in the Box
- Six Losi 4-40 x 1/2 Button Head Cap Screws (Z-LOSA6256)
Frequently Asked Questions
- What size hex key do I need to use with these button head screws? — The 4-40 button head cap screw uses a hex driver socket; you'll need the appropriately sized hex key, which is typically included in most RC hobby tool sets. Losi often specifies the exact size in their assembly manuals.
- Are these screws compatible with other RC brands besides Losi? — The 4-40 x 1/2 thread specification is a standard size used across many RC manufacturers, so these screws may work with other models that specify 4-40 fasteners. However, always check your specific RC model's documentation before purchasing to confirm compatibility.
- Why would I need six screws if I'm only replacing one? — Having multiple spares is practical for RC hobbyists who maintain their vehicles regularly. Extra screws provide replacements for damaged fasteners, spare parts for multiple repairs, and backups for future maintenance without needing to reorder.
- What is the difference between button head and socket head cap screws? — Button head cap screws have a domed, low-profile head that sits flush and looks neat, whilst socket head cap screws have a taller cylindrical head with a countersunk hex socket. Button heads are preferred in applications where clearance or aesthetics matter.
- Can I use these screws outdoors in wet conditions? — These fasteners have a black finish providing some corrosion resistance, but for long-term outdoor storage or frequent wet use, you may want to inspect them periodically for any signs of corrosion. Ensuring they're dry before storing your RC model is a good practice.
- Are these screws suitable for beginners to use? — Absolutely. Replacing or installing 4-40 button head cap screws is a basic maintenance task that even new RC enthusiasts can handle with a simple hex key tool, making this an excellent item for anyone learning to maintain their RC car.
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 LOS Button Head Screws, 4-40 x 1/2 inch (6) Z-LOSA6256 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.
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- 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.
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- 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.
