- Part Type: Set Screws
- Material: Steel
- Finish: Black Oxide
- Point Type: Flat Point
- Thread Size: M4
- Length: 6mm
- Quantity per Pack: 10
- Manufacturer: Losi
- Part Number: LOS255021
- Compatible Models: Losi 1/6 Super Baja Rey SBR 2.0 4WD Brushless Desert Truck RTR (Yellow and Blue variants)
Overview
The Losi Set Screws in steel with black oxide finish are essential replacement hardware for RC enthusiasts maintaining and servicing their Losi models. These precision-engineered M4 x 6mm fasteners feature a flat point design, making them ideal for securing components where a sharp point is required for precise seating. Whether you're a serious RC car UK competitor, a weekend basher, or someone who takes pride in keeping their brushless RC truck in perfect working condition, having a reliable supply of quality set screws is crucial to maintaining your investment and ensuring consistent performance.
Set screws are fundamental hardware components in any RC model, used extensively throughout chassis assemblies, suspension components, and drivetrain elements. The black oxide coating provides corrosion resistance, protecting the steel from rust and degradation—particularly important if you're running your RC vehicle in wet conditions or storing it for extended periods. This pack contains ten individual screws, giving you plenty of spares for regular maintenance, repairs, or building multiple vehicles. For RC enthusiasts in the UK looking for OEM Losi replacement parts that meet exact factory specifications, these set screws deliver authentic quality and compatibility.
Manufactured by Losi, a brand renowned for precision engineering in the RC hobby industry, these set screws are designed to exacting standards. The flat point configuration ensures positive contact with shaft or component surfaces, preventing slippage and maintaining secure fastening even under the vibration and stress of high-performance RC driving. Whether you're upgrading your 1/6 scale desert truck, maintaining your competition vehicle, or simply stocking spare parts for unexpected breakages, the Losi Set Screws represent genuine OEM quality that RC enthusiasts trust.
Key Features
- Steel Construction with Black Oxide Finish — The hardened steel body provides strength and durability essential for load-bearing fastening applications, whilst the black oxide coating offers corrosion resistance and protection against rust and oxidation, extending the lifespan of your RC components even in challenging outdoor conditions.
- M4 x 6mm Specification — This precise metric sizing (4mm diameter, 6mm length) ensures exact compatibility with Losi vehicles and components designed to accept this fastener size, allowing seamless integration without modification or adaptation.
- Flat Point Design — The flat point geometry creates positive contact with shaft surfaces and component recesses, preventing the screw from slipping or spinning during installation and use, ensuring reliable load transfer and component security under operational stress.
- Pack of Ten Screws — Each package contains ten individual set screws, providing ample spares for maintenance, repairs, multiple builds, or simply ensuring you never run out during a service session or track day.
- Genuine Losi OEM Part — As authentic manufacturer parts, these set screws are engineered to exact factory specifications, guaranteeing compatibility with Losi vehicles and the quality standards Losi customers expect.
- Versatile Application — Set screws are used throughout RC models for securing motor shafts, pinion gears, drive shafts, suspension components, and numerous other assemblies where rotational or fixed fastening is required.
Technical Performance
The Losi Set Screws represent precision hardware engineering essential to RC vehicle assembly and maintenance. Manufactured from hardened steel and finished with black oxide coating, these fasteners deliver the durability and corrosion resistance demanded by serious RC enthusiasts. The M4 x 6mm dimensions provide the perfect balance of strength and compact sizing for use throughout Losi vehicle designs. The flat point tip is specifically engineered to bite positively into shaft surfaces and component recesses, creating a mechanical interlock that resists vibration-induced loosening. In brushless RC applications where high rotational speeds and torque loads are present, reliable fastening is absolutely critical—poorly secured components can lead to catastrophic drivetrain failure, loss of control, or expensive damage. The black oxide finish protects against corrosion that would otherwise compromise fastening integrity over time. Whether you're competing at high speeds on the track, bashing off-road, or performing routine maintenance on your 1/6 scale desert truck or other Losi model, these set screws provide the OEM-specified fastening solution that has been proven through countless hours of real-world RC operation.
What's in the Box
- 10x Losi Set Screws, Steel, Black Oxide, Flat Point, M4 x 6mm
Frequently Asked Questions
- What are set screws and why do I need them for my RC car? — Set screws are fasteners with a flat or pointed tip used to secure components to shafts without the need for through-holes. In RC vehicles, they're essential for securing motor pinions to motor shafts, locking differential gears, and fastening numerous other drivetrain and chassis components. They're one of the most frequently replaced items due to vibration-induced loosening, making spare packs invaluable for any RC enthusiast.
- Are these compatible with my Losi RC vehicle? — These genuine Losi set screws are OEM parts designed to factory specifications. They're compatible with Losi vehicles that use M4 x 6mm flat point set screws. The source materials indicate compatibility with the 1/6 Super Baja Rey SBR 2.0 4WD Brushless Desert Truck, though they may also suit other Losi models. We recommend checking your specific vehicle's parts manual to confirm fitment.
- What does the black oxide finish do? — Black oxide is a corrosion-resistant coating applied to steel that prevents rust and oxidation. For RC vehicles exposed to moisture, humidity, or stored long-term, this coating significantly extends fastener lifespan and maintains the reliability of your vehicle's drivetrain components.
- How many screws do I need? — This pack contains ten set screws, which is typically enough for maintenance, repairs, or as backup spares. However, serious competitors and frequent users often keep multiple packs on hand, especially for track days where component failures are more likely.
- What size tools do I need to install these? — Set screws require the appropriate hex key or Allen wrench that fits the screw head socket. The M4 size typically uses a 2mm hex key, though you should verify the exact size for your specific application.
- Can I use these on other RC brands? — Whilst the M4 x 6mm flat point specification is a standard metric size that may fit other RC vehicles, these are Losi OEM parts optimised for Losi vehicles. For compatibility with non-Losi models, consult the vehicle manufacturer's parts specification.
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 Losi Set Screws, Steel, Black Oxide, Flat Point, M4 x 6mm 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.
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