- Manufacturer: Losi
- Model Number: Z-LOSA6279
- EAN: 660132616427
- Thread Type: Machine Thread
- Thread Size: 5-40
- Head Type: Button Head
- Screw Length: 3/4 inch (approximately 19mm)
- Driver Type: Hex Socket
- Quantity per Pack: 8
- RRP: £7.99
Overview
The Losi 5-40 x 3/4 inch Button Head Screws (8) are essential spare parts for RC car enthusiasts and modellers across the UK. Whether you're maintaining a Losi RC vehicle, performing routine upgrades, or repairing damage from a day of RC car bashing, having quality replacement screws on hand is crucial for keeping your model in peak condition. These button head screws are precision-engineered to Losi's exacting standards, ensuring reliable performance and longevity in your RC setup.
Button head screws are favoured by RC modellers for their low-profile design and excellent grip characteristics. Unlike traditional socket head cap screws, button head variants provide a neater appearance whilst maintaining superior holding power. The 5-40 thread specification is a standard fastener size used across many Losi RC models, from competitive racing vehicles to recreational bashers. Stocking genuine Losi spare parts like these ensures your RC car remains authentic and performs as the manufacturer intended.
For serious RC enthusiasts in the UK who demand reliability and authenticity, these Losi button head screws represent a smart investment. Whether you're an experienced racer fine-tuning your competition machine or a weekend basher keeping your RC car in fighting condition, these replacement screws will serve you well.
Key Features
- Button Head Design — The recessed button head profile sits flush with or slightly above the mounting surface, creating a clean, professional appearance whilst protecting the screw head from damage during use and transport.
- Machine Thread Specification — These screws feature machine threads rather than wood threads, providing precise engagement with threaded inserts and holes in your Losi RC components for consistent, reliable fastening without stripping.
- Hex Socket Driver — Each screw uses a hex socket driver, allowing you to use a standard hex wrench or Allen key for installation and removal, which provides excellent torque transfer and reduces the risk of damaging the screw head.
- 5-40 Thread Size — The 5-40 specification (Number 5 gauge with 40 threads per inch) is a standard fastener size used throughout many Losi RC models, making these screws versatile for numerous applications and repairs.
- 3/4 inch Length — The 3/4 inch length (approximately 19mm) is ideal for securing medium-duty components, providing sufficient material for secure engagement without being so long that they interfere with sensitive RC electronics or suspension components.
- Set of Eight — This pack includes eight screws, giving you enough fasteners for a complete repair job, routine maintenance, or replacement of worn screws across multiple areas of your RC vehicle.
- Genuine Losi Part — Manufactured by Losi, these are authentic OEM (Original Equipment Manufacturer) parts that meet the exact specifications required by Losi RC vehicles, ensuring perfect fitment and performance.
Technical Performance
The Losi 5-40 x 3/4 inch Button Head Screws are manufactured to precise engineering specifications, utilising machine threading for superior accuracy and repeatability compared to alternative fastening methods. The button head design offers several advantages over traditional socket head cap screws: it provides a lower profile that reduces the risk of catching on track obstacles or terrain during RC car racing and bashing, whilst the hex socket ensures optimal torque application without stripping. The 5-40 thread pitch (40 threads per inch) provides fine thread engagement that resists vibration loosening during high-speed runs and aggressive cornering. These screws are engineered from high-strength steel to withstand the vibration, shock loads, and repeated fastening cycles that are inherent to RC vehicle use. The 3/4 inch length makes these screws ideal for securing medium-sized components such as servo mounts, suspension brackets, and electronic housings. For RC enthusiasts in the UK who demand reliability and authenticity, these genuine Losi spare parts represent the best choice for maintaining your models to the manufacturer's specifications.
What's in the Box
- Losi 5-40 x 3/4 inch Button Head Screws — pack of 8
Frequently Asked Questions
- What are 5-40 button head screws used for in RC cars? — The 5-40 thread specification is a standard fastener size in RC vehicles, commonly used for securing servo mounts, suspension brackets, electronic housings, and other medium-duty components. Button head screws are preferred because their low-profile design reduces snagging and looks neater than traditional socket head cap screws.
- Why should I choose genuine Losi spare parts instead of generic screws? — Genuine Losi parts are manufactured to exact OEM specifications, ensuring perfect fitment and performance in your Losi RC vehicle. Generic screws may have slightly different thread pitches, head dimensions, or material properties that could lead to poor fitment, stripping, or unreliable fastening. Using authentic Losi parts preserves your vehicle's integrity and reliability.
- What is the difference between button head and socket head cap screws? — Button head screws feature a rounded, low-profile head design, whilst socket head cap screws have a taller cylindrical head. Button head screws are lower profile, reducing the chance of snagging on terrain or obstacles, and they present a cleaner, more professional appearance. Socket head cap screws offer greater mechanical advantage and can accept higher torque values, but are less suitable for compact RC applications.
- How many screws do I need? — This pack contains eight screws, which is sufficient for a complete repair job or replacement of worn fasteners across multiple areas of your RC vehicle. For extensive rebuilds or if you maintain multiple vehicles, you may wish to purchase additional packs.
- Are these screws corrosion-resistant? — These are high-strength steel screws manufactured to Losi specifications. For maximum corrosion resistance in wet or saltwater conditions, ensure screws are dried thoroughly after use and stored in a dry environment. Consider applying a light coating of silicone lubricant for additional protection if you regularly run your RC car in challenging conditions.
- Can I use these screws to replace damaged fasteners on other RC brands? — If your other RC vehicles also use 5-40 machine thread fasteners, these screws should fit, provided the component design accommodates button head geometry. However, for best results, always use the manufacturer's recommended OEM parts for each specific vehicle model.
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, 5-40 x 3/4 inch (8) Z-LOSA6279 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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