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ARRMA Cap Head Screw M3 x 25mm Steel Fastener 10 Pack Z-ARA-2158

Model No: Z-ARA-2158


COMING SOON 12/06/2026

Coming Soon - Stock Arriving: 12/06/2026

Stock Arriving: 12/06/2026

£4.99

£0.50

£4.49

Inc VAT

1 Year Warranty
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These high-quality cap head screws are the perfect replacement items for servicing your ARRMA vehicle.

Includes

10 x M3x25mm Cap Head Screws

Features

  • Strong steel material for long-lasting durability and consistent fit
  • Precision manufactured threads for fast and easy maintenance
  • Bagged in multiples so you always have spares
  • M3 x 25m (Metric 3mm Diameter x 25mm Thread Length)
  • Cap Head Hex configuration
  • Brand: ARRMA
  • Model Number: Z-ARA-2158
  • Part Type: Hardware
  • Category: Fittings - Cap Head Screws
  • Material: Steel
  • Screw Size: M3 x 25mm
  • Diameter: 3mm (Metric 3)
  • Thread Length: 25mm
  • Head Type: Cap Head
  • Driver Type: Hex Socket
  • Thread Type: Machine Thread
  • Colour: Black
  • Finish: Black (corrosion resistant)
  • Pack Quantity: 10 screws per packet
  • EAN Code: 5052127050678
  • Compatible with ARRMA KRATON 6S V6 4X4 BLX Speed Monster Truck (C-ARA8608V6T2 Pink, C-ARA8608V6T4 Blue, C-ARA8608V6T1 Orange, C-ARA8608V6T3 Green)
  • Compatible with ARRMA NOTORIOUS 6S V6 4X4 BLX Stunt Truck (C-ARA8611V6T2 Blue, C-ARA8611V6T1 Black)

Overview

The ARRMA Cap Head Screw M3 x 25mm (10) Z-ARA-2158 is an essential replacement hardware component for ARRMA RC vehicle owners across the UK. Whether you're maintaining a high-performance KRATON 6S V6 monster truck or servicing a NOTORIOUS 6S V6 stunt truck, these precision-engineered fasteners are the perfect spare parts to keep your RC car running smoothly. Cap head screws are fundamental to RC vehicle assembly and maintenance, securing critical components that endure the stresses of high-speed driving, jumps, and aggressive cornering. For anyone serious about RC car maintenance in the UK, having a ready supply of quality replacement fasteners ensures you can get back on the track quickly without waiting for delivery delays.

These metric M3 x 25mm cap head screws are manufactured by ARRMA, a brand renowned for producing OEM-quality RC components that meet strict engineering standards. The inclusion of 10 screws per packet means you'll always have spares on hand for routine maintenance, repairs, or building complete RC setups. Whether you're a weekend basher enjoying outdoor RC adventures or a dedicated enthusiast running your ARRMA vehicle regularly, having genuine ARRMA fasteners ensures compatibility and reliability. Quality screws might seem like a small detail, but they're absolutely critical—a failed fastener can lead to loose components, poor handling, and potentially dangerous situations during operation.

RC enthusiasts know that maintenance is key to longevity and consistent performance. By choosing genuine ARRMA replacement screws, you're investing in the same quality and precision that goes into ARRMA's legendary vehicles. These cap head fasteners are designed to work seamlessly with ARRMA models and provide the durability needed for intense RC action.

Key Features

  • Steel Construction — Manufactured from strong steel material, these cap head screws deliver long-lasting durability and can withstand the mechanical stresses and vibration that come with regular RC vehicle operation. Steel provides superior strength compared to softer metals, ensuring consistent fastening performance through countless driving sessions.
  • Precision Manufactured Threads — Each screw features precision-engineered threads that ensure fast, easy, and secure assembly during maintenance and repairs. The accurate thread specification means you'll achieve proper fastening torque without stripping or cross-threading, making routine servicing quicker and more reliable.
  • Cap Head Hex Configuration — The cap head design with hex driver socket provides excellent grip and torque transfer, allowing you to apply proper fastening force without risk of damaging the screw head. This configuration is standard in quality RC assembly and preferred by professional technicians.
  • M3 x 25mm Metric Specification — The M3 diameter (3mm) with 25mm thread length is a common fastening size used across multiple ARRMA vehicles, making these screws versatile for various repair and maintenance tasks on your RC setup.
  • Bagged in Multiples — Each packet contains 10 screws, ensuring you always have spare fasteners available for emergency repairs, scheduled maintenance, or building complete RC assemblies. This eliminates frustration when a screw is lost or damaged during disassembly.
  • Black Colour Finish — The black finish not only provides a professional appearance that matches ARRMA components, but also offers corrosion resistance to protect the steel from rust and degradation, particularly important if your RC vehicle is used in wet conditions or stored in humid environments.
  • Machine Thread Type — These fasteners feature machine threads (not self-tapping), meaning they work with pre-threaded holes or nuts. This ensures precise alignment and repeatable fastening torque, critical for maintaining proper component fit and vehicle handling characteristics.

Technical Performance

The ARRMA Cap Head Screw M3 x 25mm represents precision engineering in fastener design. Made from high-quality steel, these screws offer the strength-to-weight ratio essential for RC vehicles where every gram matters and reliability is non-negotiable. The metric M3 specification (3mm diameter) is a standard measurement used across the ARRMA lineup, particularly in suspension assembly, chassis bracing, and body attachment points. The 25mm thread length provides sufficient engagement depth for secure fastening without over-tightening risk. The precision-manufactured threads mean tolerances are held to tight specifications, ensuring that when you reassemble components, you achieve consistent fastening every time—critical for maintaining the handling characteristics and structural integrity of your RC vehicle. The cap head hex configuration, featuring a recessed hex socket, is superior to traditional screwdriver slots because it distributes force across a larger contact area, reducing the risk of screw head damage during assembly and disassembly. The steel material selected provides excellent corrosion resistance, particularly important for UK RC enthusiasts who may use their vehicles in damp conditions or coastal areas. Whether you're performing routine maintenance on a KRATON 6S V6 4X4 BLX Speed Monster Truck or maintaining a NOTORIOUS 6S V6 4X4 BLX Stunt Truck, these fasteners deliver the reliability and durability that ARRMA vehicles demand.

What's in the Box

  • 10 x M3 x 25mm Cap Head Screws (steel construction, hex socket drive)
  • Black finish fasteners with precision-manufactured threads

Frequently Asked Questions

  • Which ARRMA models use M3 x 25mm cap head screws? — These screws are compatible with multiple ARRMA vehicles, including the KRATON 6S V6 4X4 BLX Speed Monster Truck (available in Pink, Blue, Orange, and Green versions) and the NOTORIOUS 6S V6 4X4 BLX Stunt Truck (available in Blue and Black). However, ARRMA vehicles typically use fasteners across multiple locations and sizes, so checking your vehicle manual or parts diagram will confirm exact usage points.
  • Why should I buy genuine ARRMA replacement screws? — Genuine ARRMA fasteners are engineered to OEM specifications and tested for compatibility with ARRMA vehicles. Using counterfeit or inferior screws risks cross-threading, poor fastening, component damage, and potential safety issues during operation. Genuine parts ensure peace of mind and reliable performance.
  • How often should I replace these screws? — Under normal circumstances, quality steel cap head screws don't require replacement unless they become damaged, stripped, or lost during disassembly. However, having spare fasteners is essential for RC maintenance because screws can be lost during field repairs or accidents. Keeping 10 spares ensures you're prepared.
  • What tools do I need to use these screws? — You'll need an appropriately-sized hex key (Allen wrench) to install and remove these cap head screws. The exact size will match the hex socket in the screw head—typically 2.0mm or 2.5mm for M3 fasteners, though always verify with your ARRMA vehicle documentation.
  • Are these screws suitable for beginners? — Yes. Cap head screws are fundamental RC components, and installing or removing them is one of the basic skills every RC enthusiast learns. The precision-manufactured threads and hex configuration actually make these easier to work with than cheaper alternatives, reducing the risk of stripping or cross-threading.
  • Can I use these screws for custom modifications? — M3 x 25mm fasteners are a standard metric size used across many RC brands and applications. While you can technically use them for custom work, always ensure the application and stress levels are appropriate for the screw's tensile strength. Verify screw specifications match your modification requirements.

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 ARRMA Cap Head Screw M3 x 25mm (10) Z-ARA-2158 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.
  • 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.