- Brand: Losi
- Model number: Z-LOS255011
- EAN: 605482828892
- Product type: Button head screws
- Quantity in pack: 10
- Material: Steel
- Finish: Black oxide
- Thread type: Machine thread
- Head type: Button head
- Thread size: M4
- Length: 30mm
- Driver type: Hex socket
- Hex key size: 3mm
- Colour: Black
- Compatible with: Losi 1/6 Super Baja Rey SBR 2.0 4WD Brushless Desert Truck RTR (Blue and Yellow variants)
Overview
The Losi Button Head Screws in steel with black oxide finish represent essential replacement hardware for RC enthusiasts maintaining their vehicles. These M4 x 30mm fasteners are precision-engineered to meet the exacting standards demanded by modern RC car UK builders and competitors. Whether you're performing routine maintenance on your RC buggy, truggy, or desert truck, or undertaking a complete rebuild, having the correct replacement screws on hand ensures your vehicle stays in peak condition. The black oxide coating provides corrosion resistance whilst maintaining a professional appearance on your RC model, and the button head design offers a clean, flush finish that's ideal for sensitive mounting applications.
Losi is recognised worldwide as a leader in RC innovation and quality, with a heritage spanning decades of competitive racing and off-road excellence. These button head screws come from that same commitment to precision and reliability. The M4 x 30mm size makes these screws compatible with a wide range of Losi vehicles, including the popular 1/6 scale Super Baja Rey SBR 2.0 4WD brushless desert truck. If you're building or maintaining a serious RC machine, you need hardware you can trust, and Losi's reputation for excellence extends right down to their fastener range.
This pack contains ten individual screws, providing you with a quantity that covers typical replacement needs or allows for spare parts inventory. The steel construction ensures strength and durability through repeated assembly and disassembly cycles, whilst the black oxide finish resists rust and corrosion, extending the lifespan of your screws even when exposed to dusty racing conditions or wet weather environments that UK RC enthusiasts often encounter.
Key Features
- M4 x 30mm specification — The 30mm length combined with M4 diameter makes these screws ideal for a variety of mounting applications on mid-sized and larger RC vehicles, ensuring you have the correct size for your Losi model's requirements.
- Steel construction — High-strength steel provides durability and reliability through countless assembly cycles, preventing the fastener failure that can occur with inferior materials.
- Black oxide finish — This coating provides enhanced corrosion resistance, protecting your screws from rust and oxidation, particularly important when racing in British weather conditions or storing vehicles for extended periods.
- Button head design — The rounded, low-profile button head offers a clean aesthetic finish and sits flush against mounting surfaces, reducing snagging on components and providing a professional appearance to your RC build.
- Hex drive type — The hex socket head allows for precise tightening using standard hex drivers, minimising the risk of stripping and ensuring consistent torque application.
- Pack of ten — Ten screws per pack gives you sufficient quantity for repairs, replacements, or building spares inventory for your RC collection.
- Losi OEM quality — As genuine Losi replacement parts, these screws are engineered to the same specifications as original equipment, guaranteeing compatibility and performance with your RC vehicle.
Technical Performance
These Losi button head screws represent straightforward but critical RC hardware engineering. The M4 x 30mm dimension provides the right balance of strength and weight for applications on vehicles ranging from compact 1/10 scale machines through to larger 1/6 scale models. The steel material offers superior strength compared to cheaper alternatives, preventing shank failure under load. The black oxide coating is a heat-applied process that creates a thin, dark oxidised layer on the steel surface, enhancing corrosion resistance without significantly adding to the screw's diameter or weight. The hex drive system means you'll need a 3mm hex key or hex driver bit to install or remove these screws, allowing for precise control and consistent tightening torque. The button head design, also called a socket head cap screw in engineering terminology, provides a lower profile than flat head screws whilst offering more surface contact than pan head alternatives, making it ideal for applications where components mount flush to chassis plates or suspension arms. Quality control in Losi's manufacturing ensures dimensional tolerance, so you can be confident that each screw will thread smoothly and sit properly. Whether you're maintaining a stock Losi vehicle or using these as upgrade fasteners in custom RC builds, the consistent quality of OEM Losi hardware ensures reliable performance lap after lap.
What's in the Box
- 10 x Losi Button Head Screws, M4 x 30mm, steel, black oxide finish
Frequently Asked Questions
- Are these button head screws compatible with my Losi RC car? — These M4 x 30mm button head screws are specifically designed as Losi replacement parts and are confirmed compatible with the Losi 1/6 Super Baja Rey SBR 2.0 4WD brushless desert truck, along with various other Losi models. If you're unsure whether they fit your specific vehicle, contact the RC Model Shop team who can verify compatibility with your exact model number.
- What does black oxide finish mean and why does it matter? — Black oxide is a protective coating applied to steel fasteners that creates a dark, rust-resistant surface. This coating is particularly valuable for RC vehicles because it protects screws from corrosion caused by moisture, dirt, and salt exposure during outdoor racing. Uncoated steel screws can rust over time, potentially seizing and becoming impossible to remove, whereas black oxide-coated screws maintain their function through multiple seasons of use.
- Will these screws work as replacements for damaged fasteners? — Yes, these are genuine Losi replacement parts engineered to original equipment specifications. If you've stripped threads, lost screws, or need to replace damaged fasteners on your Losi vehicle, these screws will restore your machine to factory specifications. The M4 x 30mm size is a common dimension across many Losi platforms.
- What size hex key do I need to install these screws? — These button head screws feature a hex socket head, and you'll need a 3mm hex key or hex driver bit to install or remove them. Make sure your hex driver fits snugly in the socket to avoid stripping the head.
- Are these suitable for beginners? — Yes, absolutely. Whether you're a beginner learning basic RC maintenance or an experienced builder, replacement screws are essential consumables. Having the correct OEM fasteners means your vehicle remains in proper working order. Beginners should note that these are simple, straightforward replacement parts with no special installation requirements beyond using the correct size hex key.
- Can I use these on other brands of RC vehicles? — Whilst these are Losi-specific OEM parts, the M4 x 30mm specification is a standard metric fastener size. However, we recommend using OEM screws for your vehicle brand to ensure compatibility, proper fit, and manufacturer-backed quality assurance. For non-Losi vehicles, check your manual or contact customer support to confirm the correct fastener specifications.
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, Steel, Black Oxide, M4 x 30mm (10) Z-LOS255011 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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- 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.
