Overview
The HoBao 3x4mm Set Screws represent essential spare parts for RC car enthusiasts across the UK who demand reliable fastening solutions for their precision-engineered models. Whether you're maintaining a HoBao RC car or require replacement set screws for general RC applications, this 10-piece pack offers excellent value and dependable performance. These grub screws are manufactured to exacting standards by HoBao, a recognised name in the RC hobby industry, ensuring compatibility and quality that serious hobbyists and casual bashers alike can trust.
Set screws, also known as grub screws, are crucial components in any RC car setup, used to secure various parts including motor shafts, wheel hubs, and adjustment mechanisms. The M3x4mm specification makes these screws ideal for small-scale RC vehicles where precision fastening is essential. Whether you're a seasoned RC racer preparing for competition or a weekend basher maintaining your collection, having spare set screws on hand prevents frustrating downtime and keeps your RC car UK adventures moving smoothly.
This pack of 10 pieces provides excellent value for money at just £1.89, making it an affordable essential for any RC enthusiast's spare parts collection. The black colour finish adds a professional appearance while the machine thread construction ensures consistent performance across repeated assembly and disassembly cycles.
Key Features
- M3 Size with 4mm Length — The M3x4mm specification is perfectly suited for small-scale RC components, providing secure fastening without over-tightening risks that can damage delicate plastic or aluminium parts commonly found on RC cars and trucks.
- Hex Driver Type — These set screws feature a hex socket head design, allowing for precise installation and removal using standard hex keys (Allen keys) that most RC hobbyists already have in their toolkit, ensuring no additional specialist tools are required.
- Machine Thread Construction — The machine thread design provides reliable grip and holding power through repeated assembly and disassembly, essential for RC maintenance where components may need regular adjustment and servicing.
- Grub Screw Configuration — As traditional grub screws without external heads, these fasteners sit flush when installed, preventing interference with moving parts or creating snag points that could affect RC car performance during high-speed runs.
- 10-Piece Pack — The generous 10-piece pack ensures you have plenty of spares for multiple repairs, replacements, or building projects, reducing the need for frequent reordering and keeping your RC hobby running without interruption.
- Professional Black Finish — The black colour coating provides corrosion resistance and maintains a professional appearance, important for maintaining the aesthetic quality of your RC vehicles during regular use and storage.
- HoBao Manufactured Quality — As genuine HoBao components, these set screws meet the manufacturer's quality standards and are designed to work seamlessly with HoBao RC models and other compatible applications.
Technical Performance
These M3x4mm set screws are engineered from quality materials with precision machine threading that ensures consistent performance across multiple installation cycles. The 4mm length is specifically designed for typical RC car applications where space is limited but secure fastening is critical. The hex socket design accommodates standard hex keys, making installation straightforward for builders of all experience levels. The machine thread construction means these screws will hold securely once tightened, yet remain removable for future maintenance without stripping or damage. The black finish provides adequate protection against oxidation and corrosion, important for RC cars stored in UK garages or used in varying weather conditions. Each screw in the 10-piece pack is manufactured to identical specifications, ensuring uniformity and reliability throughout your RC fleet. Whether securing motor shafts on brushless RC cars, fastening wheel hubs on off-road buggies, or adjusting suspension components on competition-grade RC trucks, these set screws deliver the dependable performance expected from HoBao branded components.
What's in the Box
- 10x M3x4mm Set Screws (Grub Screws) with Hex Socket Head
Frequently Asked Questions
- What are set screws used for on RC cars? — Set screws, also called grub screws, are used to secure small components on RC vehicles including motor shafts, wheel hubs, adjustable suspension parts, and steering linkage components. They feature a socket head that sits flush when installed, preventing interference with moving parts.
- Are these M3x4mm set screws compatible with my HoBao RC car? — These HoBao 3x4mm set screws are manufactured as genuine HoBao components and are designed for HoBao RC models. However, compatibility depends on your specific model, so we recommend checking your vehicle's manual or contacting our team for confirmation before ordering.
- What tools do I need to install these set screws? — The hex socket head design means you'll only need a standard hex key (Allen key) to install and remove these screws. Most RC hobbyists have a set of hex keys in their toolkit already, so no specialist tools are required.
- How many screws are in the pack and will they be enough for my needs? — This pack contains 10 set screws, providing plenty of spares for maintenance, repairs, or multiple RC vehicles. For most hobbyists, this quantity should cover standard repair and replacement needs without requiring frequent reordering.
- Can I use these set screws on RC vehicles other than HoBao models? — The M3x4mm specification is a standard size used across many RC applications. While designed as HoBao components, they may be compatible with other RC cars, buggies, and trucks that use M3x4mm set screws. Always verify your vehicle's specifications before purchasing.
- What is the difference between set screws and regular bolts? — Set screws differ from regular bolts in that they sit flush without a protruding head, making them ideal for applications where space is limited or moving parts must not be obstructed. The machine thread design also allows for precise adjustment on RC components.
- Are these set screws suitable for beginners? — Yes, absolutely. These set screws are beginner-friendly because they use standard hex socket heads that require only a basic hex key for installation. The 10-piece pack provides multiple spares, making them ideal for learning basic RC maintenance and assembly techniques.
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 HoBao 3x4mm Set Screws H38304 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.
- Manufacturer: HoBao
- Part Number: H38304
- EAN: 4711605975391
- Size: M3
- Length: 4mm
- Head Type: Grub (Socket Head)
- Driver Type: Hex
- Thread Type: Machine Thread
- Colour: Black
- Pack Quantity: 10 pieces
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.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- 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.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- 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.