FTX Button Head Hex Screw M3 X 34 RC Car Spare Part FTX6521

Overview

The FTX Button Head Hex Screw M3 X 34 (FTX6521) is an essential spare part for RC enthusiasts across the UK who maintain and repair their RC vehicles. Whether you're a seasoned competitor, a weekend basher, or someone just discovering the world of RC cars and trucks, having quality replacement fasteners on hand is crucial for keeping your model running smoothly. This M3 button head hex screw is specifically designed to fit FTX RC vehicles and compatible models, making it an indispensable addition to any RC car UK enthusiast's toolbox or spare parts collection.

Button head hex screws are among the most commonly used fasteners in RC car construction and assembly. They feature a distinctive rounded, domed head that sits flush against components, providing a clean aesthetic while offering excellent grip strength when tightened with the appropriate hex key. The M3 X 34 specification makes this screw ideal for a wide range of applications within RC vehicles, from securing chassis components to attaching body panels and internal parts. At just £2.50 (excluding tax at £2.08), this represents exceptional value for money and demonstrates why RC Model Shop is the preferred choice for RC car UK buyers seeking quality spares at competitive prices.

FTX has built a reputation for producing reliable, durable RC vehicles and comprehensive spare parts ranges that ensure you can always find exactly what you need to maintain your model. This button head hex screw is manufactured to exacting standards, ensuring consistent quality and reliable performance across countless applications within your RC vehicle. Whether you're replacing a worn or damaged screw, building a new model from scratch, or stocking your spare parts inventory, the FTX6521 delivers the precision and reliability that RC enthusiasts demand.

Key Features

• M3 Thread Size — The M3 metric specification ensures compatibility with a wide range of FTX RC vehicles and models, making this screw suitable for numerous applications within your RC car setup. This standard size is recognised across the RC hobby worldwide, meaning you'll find it on everything from crawlers to buggies to stadium trucks.
• 34mm Length — The 34mm length provides the perfect balance for securing medium-thickness components and assemblies within RC vehicles. This extended length makes it suitable for applications where you need to pass through multiple layers or where deeper engagement is required for secure fastening.
• Button Head Design — The distinctive rounded button head offers multiple advantages over traditional hexagonal head screws. It provides a clean, finished appearance, reduces snagging on obstacles, and allows for excellent grip when using the correct hex key tool. The domed profile is instantly recognisable and makes identification easy when working on your RC vehicle.
• Quality Construction — FTX fasteners are manufactured to precise tolerances, ensuring consistent thread quality and reliable fastening performance. The material and finish are selected to resist corrosion and wear, extending the lifespan of your RC vehicle's internal components.
• Hex Socket Head — The internal hexagonal socket accepts standard hex key tools, providing secure engagement and preventing the fastener from slipping or stripping during installation or removal. This design is far superior to slotted or Phillips head alternatives for RC applications.
• Individual Spare Part — Supplied as a single screw rather than a multi-pack, this gives you the flexibility to purchase exactly what you need without waste. This is perfect for replacing a single damaged fastener without committing to a larger pack.

Technical Performance

The FTX Button Head Hex Screw M3 X 34 represents precision engineering applied to RC vehicle fastening. The M3 designation indicates a 3mm nominal diameter, providing excellent holding power whilst remaining lightweight—a critical consideration in RC vehicles where every gram matters. The 34mm length is carefully calculated to suit applications within FTX RC vehicles where you need sufficient depth to engage multiple components securely. The button head design distributes clamping force across a larger surface area compared to standard hex head screws, reducing the risk of damage to softer materials like composite chassis plates or aluminium housings. The material specification ensures resistance to vibration-induced loosening, a common issue in RC vehicles that experience constant acceleration, deceleration, and impacts. The precise tolerances maintained during manufacturing mean that each screw will thread smoothly and engage securely without resistance, making assembly and disassembly straightforward even after extended use. The finish resists corrosion from exposure to dirt, mud, and moisture encountered during outdoor RC car UK bashing sessions, whilst the hardness of the steel ensures that the threads remain intact across multiple installation and removal cycles. Whether you're securing a chassis plate, attaching suspension components, or fastening body work, this fastener delivers the reliability and performance that modern RC vehicles demand.

What's in the Box

• 1x FTX Button Head Hex Screw M3 X 34 (FTX6521)

Frequently Asked Questions

• What is a button head hex screw used for in RC vehicles? — Button head hex screws are among the most versatile fasteners in RC car construction. They're used throughout your vehicle to secure chassis components, attach body panels, fasten internal brackets, and hold together numerous assemblies. The M3 X 34 size is particularly suited to applications requiring medium depth penetration and strength. The button head design is preferred in RC because it sits flush against components, reducing snags and providing a finished appearance.
• Why should I choose M3 X 34 fasteners for my RC vehicle? — The M3 X 34 specification is a popular choice across many FTX models because it offers the perfect balance between holding power and weight. The 34mm length allows the screw to pass through multiple layers of material whilst achieving secure engagement, making it ideal for complex assemblies. The M3 size is standard across the RC hobby, meaning you'll find compatibility across numerous vehicles and brands.
• How do I know if this is the correct fastener for my model? — Check your FTX vehicle's manual or parts diagram to identify the correct fastener size and length. The model number FTX6521 is specific to this M3 X 34 specification. If you're unsure, measure an existing screw or contact RC Model Shop's expert team for guidance.
• Can I use this screw in other RC cars or just FTX vehicles? — Whilst this fastener is specifically manufactured by FTX for their vehicles, the M3 X 34 specification is a standard metric size used across the RC industry. Many RC vehicles from different manufacturers will accept screws of this size. However, for best results and guaranteed compatibility, use FTX fasteners with FTX vehicles and check compatibility before using in other brands.
• What hex key size do I need to tighten this screw? — The button head hex socket is designed for a 2.5mm hex key (also called an Allen key). This is the standard size for M3 button head hex screws. Using the correct size tool prevents stripping the socket and ensures secure fastening without damage.
• How many screws come in this pack? — The FTX6521 is supplied as a single screw, allowing you to purchase replacement fasteners on an as-needed basis. This is perfect for replacing individual damaged screws without waste, and ideal for topping up your spare parts inventory.
• Why are spare fasteners important for RC car UK enthusiasts? — RC vehicles experience constant vibration, impacts, and movement during use. Fasteners can become loose, damaged, or stripped over time, particularly in high-stress applications. Having quality replacement screws on hand means you can quickly repair your vehicle and get back to enjoying your RC experience without delays. Building a spare parts inventory, including various fastener sizes, is a hallmark of experienced RC car UK hobbyists.

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 FTX BUTTON HEAD HEX SCREW M3 X 34 FTX6521 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.