- Manufacturer: Losi
- Model Number: Z-LOSA6242
- EAN: 605482137987
- Thread Size: 5-40
- Screw Length: 1.25 inch
- Head Type: Caphead
- Driver Type: Hex Socket
- Thread Type: Machine Thread
- Colour: Silver
- Quantity: 4 pieces
Overview
The Losi 5-40 x 1.25 inch Caphead Screws (4) Z-LOSA6242 are genuine Losi replacement fasteners designed for RC enthusiasts and competitive racers across the UK. These precision-engineered machine screws are essential components for building, maintaining and upgrading RC cars, buggies, trucks and crawlers. Whether you're a weekend basher enjoying RC off-road action or a serious competitor fine-tuning your RC vehicle for competition, having a reliable supply of quality caphead screws is crucial for keeping your RC hobby running smoothly.
Caphead screws are one of the most commonly used fasteners in RC model building, used to secure everything from body panels and electronic components to suspension parts and drivetrain assemblies. The Losi brand is renowned throughout the RC community for manufacturing high-quality replacement parts and spares that meet the exact specifications required by their vehicles. This pack of four genuine Losi caphead screws ensures you have replacement fasteners on hand whenever you need them, whether for routine maintenance, repairs after a crash, or custom modifications to your RC car.
These screws are silver in colour, featuring a distinctive hex socket drive that allows for quick and reliable installation using a hex key or Allen wrench. The machine thread design ensures smooth, secure fastening without stripping, making them ideal for both plastic and metal components commonly found on Losi RC vehicles and compatible RC models throughout the UK.
Key Features
- Genuine Losi Product — These screws are genuine Losi replacement parts, ensuring perfect compatibility with Losi RC vehicles and consistent quality across every unit in the pack.
- Hex Socket Drive — The hex (Allen key) drive type allows for precise, tool-friendly installation and removal, making it easy to work on your RC car with standard hex key sets that most RC enthusiasts already own.
- Machine Thread Design — Machine threads provide superior holding power and reduced risk of stripping compared to wood screws, making them ideal for the precision engineering required in RC hobby vehicles.
- Caphead Style — The caphead (socket head cap screw) design provides a low-profile, finished appearance whilst offering excellent strength and reliability for demanding RC applications.
- Silver Finish — The attractive silver colour complements the finish of most RC vehicle components, contributing to a professional appearance whether you're building or maintaining your RC model.
- 5-40 Thread Specification — The 5-40 metric specification is a standard fastener size across many Losi RC models, ensuring compatibility with a wide range of vehicles in the Losi product line.
- 1.25 Inch Length — The 1.25 inch overall length makes these screws suitable for medium-depth fastening applications throughout RC vehicles, from securing electronic bays to attaching suspension components.
- Pack of Four — This convenient four-piece pack ensures you have multiple replacement screws on hand, perfect for repair jobs or routine maintenance without needing to purchase in bulk.
Technical Performance
The Losi 5-40 x 1.25 inch Caphead Screws represent the kind of precision fastening hardware that separates quality RC hobby work from amateur repairs. These machine screws feature carefully manufactured threads designed to bite firmly into plastic and metal materials commonly used in RC vehicle construction, providing secure fastening that resists vibration-induced loosening during aggressive driving. The 5-40 thread specification is a metric standard that has been proven reliable across countless Losi RC models, from small-scale buggies to larger monster trucks and crawlers. The 1.25 inch length places these screws in the medium-length category, making them suitable for applications where standard fastening hardware must bridge component gaps whilst maintaining a neat, finished appearance. The hex socket drive accommodates standard hex key tools, allowing technicians to apply controlled torque without risk of tool slippage that could damage screw heads or surrounding components. The caphead design concentrates fastening force through a robust cylindrical head, distributing loads evenly and reducing stress concentration that can lead to fastener failure under the vibration and impacts inherent to RC off-road driving. Whether you're building a new RC vehicle from a kit, performing routine maintenance on an existing model, or making emergency repairs after a crash, these genuine Losi screws provide the reliability and fit you can depend on.
What's in the Box
- 4x Losi 5-40 x 1.25 inch Caphead Screws in silver finish
Frequently Asked Questions
- What are caphead screws used for in RC vehicles? — Caphead screws, also known as socket head cap screws, are universal fasteners used throughout RC cars, trucks, buggies and crawlers to secure body panels, electronic components, suspension parts, motor mounts and drivetrain assemblies. Their strong, low-profile design makes them ideal for RC hobby vehicles where strength and compact size are essential.
- Are these screws compatible with my Losi RC vehicle? — Yes, these are genuine Losi replacement parts with the official Losi part number Z-LOSA6242, ensuring perfect compatibility with any Losi RC vehicle that uses 5-40 x 1.25 inch caphead screws. If you own any Losi RC model, these screws are designed as direct replacements for worn, lost or damaged fasteners.
- What tools do I need to install these caphead screws? — These screws feature a hex socket drive, meaning you need only a hex key (Allen wrench) of the appropriate size to install or remove them. Most RC enthusiasts already have hex key sets that include the size required for 5-40 screws.
- How many screws come in this pack? — This pack contains four caphead screws, providing multiple replacements for repair jobs or routine maintenance of your RC vehicle.
- Why should I choose genuine Losi replacement parts? — Genuine Losi parts are manufactured to exact specifications and undergo quality control testing, ensuring perfect fit and reliable performance. Using genuine replacement fasteners prevents compatibility issues and maintains the integrity of your RC vehicle's construction, which is especially important for competitive RC racing where reliability is critical.
- What is the difference between a caphead screw and other fastener types? — Caphead screws, also called socket head cap screws, feature a hex socket drive and cylindrical head that provides superior strength and a finished appearance compared to slotted or Phillips head screws. The robust head design allows better load distribution and resists stripping, making them preferred for precision RC applications.
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 Caphead Screw, 5-40 x 1.25 inch (4) Z-LOSA6242 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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