Corally Steel Set Screws M4 x 4mm Hex Socket 10 Pack C-3004-40-04

Overview

The Corally Steel Set Screws M4 x 4mm Hex are an essential fastening component for any serious RC enthusiast maintaining their radio-controlled vehicles. Whether you're working on an RC car in the UK or setting up a competition-grade machine, having quality replacement screws is crucial for keeping your RC model in peak condition. These premium steel fasteners are manufactured to exacting standards and are ideal for securing components on your RC vehicle where reliability and durability matter most.

Set screws, also known as grub screws, are specialised fasteners designed to hold components in place without protruding beyond the surface they secure. The M4 x 4mm specification makes these screws perfectly suited for a wide range of RC applications, from motor mounts to drive shafts and suspension components. The hex socket design allows for precise tightening using a hex key, ensuring you can apply consistent torque without risk of stripping or damaging the fastener. This pack contains 10 individual screws, giving you sufficient spare parts for multiple repairs or builds.

Corally is a respected manufacturer in the RC hobby community, known for producing quality replacement parts and upgrades that help keep your RC car UK collection running smoothly. These steel set screws represent the kind of attention to detail and engineering excellence that makes Corally a trusted choice among RC enthusiasts, whether you're a weekend basher or a competition racer looking to maintain your equipment to the highest standards.

Key Features

• M4 x 4mm Specification — These screws are precisely dimensioned at M4 diameter with a 4mm length, making them compatible with a wide range of RC models and components that require this standard fastener size for reliable assembly.
• Hex Socket Head Design — The 10-point hex socket allows you to use a standard hex key for installation and removal, providing superior grip and making it virtually impossible to strip the fastener head during use.
• Industrial Grade Steel Construction — Manufactured from high-quality steel material, these set screws offer exceptional strength and durability to withstand the vibrations and stresses encountered in RC vehicle operation.
• DIN 916 Standard Compliance — These screws meet the international DIN 916 specification for socket head cap screws, ensuring they work seamlessly with standard RC components and replacement parts designed to this recognised standard.
• Black Finish — The screws feature a black finish that resists corrosion and oxidation, helping to maintain their appearance and structural integrity even after extended use in outdoor RC environments.
• Pack of 10 Pieces — With ten individual screws included in each pack, you'll have sufficient spares for multiple repairs, maintenance tasks, or building projects without needing to purchase additional fastener sets immediately.
• Precise Thread Quality — Each screw is manufactured with consistent thread geometry to ensure smooth installation and reliable holding power, critical for maintaining component alignment in your RC car.

Technical Performance

The Corally Steel Set Screws M4 x 4mm represent precision fastening engineered for demanding RC applications. The M4 metric thread diameter is a standard fastener size used extensively in RC vehicles for securing motor shafts, bearing blocks, suspension arms, and various other critical components. The 4mm length is specifically designed for applications where shallow socket depth is required, such as holding lightweight composite or aluminium parts without creating stress concentrations. The hex socket head design provides a large contact area compared to other socket types, distributing pressure evenly and preventing the hex key from slipping during tightening operations. Built from industrial-grade steel and manufactured to strict DIN 916 specifications, these screws deliver consistent holding power even under the vibration and mechanical stress inherent in RC vehicle operation. The black finish provides additional corrosion resistance, making these screws suitable for use in wet conditions or outdoor racing environments common in UK RC communities. Whether you're maintaining a brushless RC car, upgrading suspension geometry, or replacing worn fasteners, these set screws provide the reliability and precision that serious RC hobbyists demand from their replacement parts.

What's in the Box

• Corally Steel Set Screws M4 x 4mm — 10 pieces

Frequently Asked Questions

• What are set screws used for in RC cars? — Set screws (also called grub screws) are used to secure components to shafts or prevent parts from rotating or shifting position. In RC vehicles, they commonly hold motor shafts to pinions, secure suspension arms to pivot pins, and lock servo horns in place. Unlike standard screws that pass completely through components, set screws sit flush with or slightly proud of the surface, preventing interference with moving parts.
• Are these screws suitable for my RC vehicle? — The M4 x 4mm specification makes these screws compatible with most modern RC cars that use metric fasteners, including brushless RC vehicles, electric RC buggies, and many other standard RC models. However, you should verify that your specific vehicle uses M4 set screws before purchasing. Check your vehicle's manual or measure existing fasteners to confirm compatibility.
• What does DIN 916 specification mean? — DIN 916 is an international standard that defines the dimensions, materials, and performance requirements for socket head cap screws. Screws meeting this specification offer consistent quality, precise thread geometry, and reliable holding power. This standardisation means the Corally screws will work seamlessly with any components designed to accept standard DIN 916 fasteners.
• How should I install these set screws correctly? — Use a correctly-sized hex key (the appropriate size for the M4 socket) and apply firm, even pressure when tightening. Do not over-tighten, as this can strip the threads or stress the component being fastened. Most RC applications require only hand-tight pressure followed by a quarter to half turn with a hex key to ensure a secure connection.
• Why choose steel set screws over alternatives? — Steel set screws offer superior strength, durability, and corrosion resistance compared to brass or aluminium alternatives. For critical applications like securing motor shafts or suspension components in high-performance RC cars, steel fasteners provide the reliability needed to maintain component integrity during intense driving sessions.
• Are these suitable for beginners? — Yes, these set screws are suitable for RC enthusiasts at any skill level. They are standard fasteners used in RC vehicle maintenance and repair. If you're new to RC, learning to use the correct fastener sizes and installation techniques is an important skill that will serve you well throughout your RC hobby journey.
• How many screws do I need? — This pack contains 10 screws, which should provide sufficient spares for several repair or maintenance sessions. Most RC vehicles only require a few set screws for critical applications, so this pack will likely last through multiple repairs before needing replenishment. It's always wise to keep spare fasteners on hand when maintaining RC vehicles.

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 CORALLY STEEL SET SCREWS M4 X 4MM HEX 10 PCS C-3004-40-04 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.