Associated Bulkhead Washers 7.8 x 1.0mm Blue Aluminium 10 Pack AS31385

Overview

The Associated Bulkhead Washers 7.8 x 1.0mm Blue Aluminium (10) AS31385 are essential precision shimming components designed for RC car builders and enthusiasts across the UK. These large outside diameter shims provide a simple yet effective solution for fine-tuning spacing and alignment on your RC vehicle, whether you're setting up an off-road racer or an on-road competition build. Supplied as a convenient pack of ten, these washers are particularly well-suited to 1:10 scale RC cars, making them a versatile addition to any RC hobbyist's spares collection.

If you're building or maintaining an RC car UK, you'll understand how critical precise shimming is to achieving optimal performance and handling. These bulkhead washers from Associated are engineered to provide reliable support where extra contact area is beneficial, whether you're adjusting bulkhead positioning, arm mounts, or other critical components that require exact spacing. The blue aluminium construction keeps weight to a minimum while delivering the durability needed for demanding off-road applications and precision on-road setups.

Whether you're a seasoned competitor fine-tuning your ready to run RC car or a dedicated enthusiast building your perfect machine, these Associated washers represent genuine OEM parts that you can trust. Their widespread compatibility across numerous Associated models makes them an indispensable spare to have on hand for any RC car collection.

Key Features

• Pack of 10 Washers — You receive ten individual washers in each pack, providing multiple shims for various applications and ensuring you have spares available for future builds or adjustments without needing to purchase additional packs immediately.
• 7.8 x 1.0mm Dimensions — The precise outer diameter of 7.8mm combined with the 1.0mm thickness creates an optimal profile for bulkhead and arm mount applications, offering the perfect balance between contact area and minimal weight addition.
• Large Outside Diameter Design — The generous outer diameter of these shims provides an effective contact area for distributing load and pressure, making them ideal for applications where greater support is beneficial and where precision positioning is critical.
• Blue Aluminium Construction — Manufactured from quality aluminium and finished in an attractive blue colour, these washers keep overall weight low whilst maintaining structural integrity and delivering a clean, professional appearance to your RC build.
• Off-Road and On-Road Compatibility — These washers are commonly used for off-road applications where rough terrain demands reliable spacing, and are equally effective for bulkhead and arm mount shimming in precision on-road builds where exact alignment is essential.
• 1:10 Scale Optimisation — Specifically designed for 1:10 scale vehicles, these washers are perfectly proportioned for the mounting points and structural requirements of this popular RC car scale, making them ideal for enthusiasts with competitive 1:10 buggies, trucks, and other vehicles.
• Genuine Associated OEM Part — As an authentic Associated spare part, you can be confident these washers meet the manufacturer's exact specifications and quality standards, ensuring reliable fitment and performance across compatible Associated models.

Technical Performance

These bulkhead washers represent the kind of precision engineering that separates a properly set-up RC car from one that merely looks the part. The 7.8 x 1.0mm dimensions have been carefully chosen to work within the mounting architecture of 1:10 scale RC vehicles, where weight distribution and exact spacing can significantly impact handling characteristics, chassis balance, and overall performance. The blue aluminium construction provides an excellent strength-to-weight ratio, meaning you gain the structural support needed for precise shimming without adding unnecessary mass that would affect acceleration, braking, or suspension response. The large outside diameter ensures that when installed, these washers distribute load across a wider contact area, reducing the risk of stress concentration and providing more consistent support than smaller alternatives. Whether you're setting up a bulkhead assembly, fine-tuning arm mount geometry, or adjusting suspension bracket positioning, these washers deliver the reliability that serious RC car builders demand. The finish and engineering quality confirms these are genuine Associated spares, not budget alternatives, making them the preferred choice for anyone serious about their RC car's setup and longevity.

What's in the Box

• 10 x Associated Blue Aluminium Bulkhead Washers 7.8 x 1.0mm

Frequently Asked Questions

• Are these bulkhead washers compatible with my Associated RC car? — Yes, these AS31385 washers are designed for a wide range of Associated 1:10 scale vehicles including the B64, F6, B6.1, B6.1D, T6.1, SC10.3, TC7.2, Reflex 14B, B74, B6.1DL, B74.1, B6.4D, B6.4, B74.2D, B74.2, T6.4, SC6.4, RC10CC, B7, B7D, RC10 Kinwald Edition, and RC10T 4WD. If you own any of these models, these washers are a direct OEM fit.
• What is the difference between 7.8mm and smaller washers? — The larger 7.8mm outside diameter provides significantly more contact area than smaller alternatives, which means better load distribution, more stable shimming, and reduced risk of stress concentration at mounting points. For off-road racing and aggressive driving, this larger diameter is particularly beneficial for maintaining alignment under hard cornering and impact.
• Can I use these washers for both off-road and on-road RC cars? — Absolutely. These washers are noted as being common for off-road applications whilst also being specifically recommended for bulkhead and arm mount shimming in on-road builds, making them genuinely versatile across both disciplines.
• Why would I need multiple packs of these washers? — Most serious RC car builders keep multiple packs on hand because shimming is often an iterative process during setup and tuning. Having ten washers per pack means you can experiment with different configurations on multiple vehicles without constantly reordering, and you'll always have spares for future builds.
• Are these suitable for beginners? — Yes, whilst these are genuine OEM spares used by serious competitors, they are equally valuable for beginners learning to set up their RC cars correctly. Understanding proper shimming and spacing is fundamental to RC car setup, and having quality washers like these makes learning the process much easier and more effective.
• What makes blue aluminium a good choice for washers? — Aluminium offers an excellent balance of light weight and structural rigidity, crucial for RC car applications where every gram counts. The blue colour is both aesthetically pleasing and helps with visual inspection during assembly, making it easier to spot washers during maintenance or rebuild work.

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 ASSOCIATED BULKHEAD WASHERS 7.8 x 1.0mm BLUE ALUMINIUM (10) AS31385 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.