- Manufacturer: Axial
- Manufacturer Part Number: AX31490
- RC Model Shop Part Number: Z-AX31490
- Product Type: Hex Socket Button Shoulder Screw
- Thread Size: M2.5
- Shoulder Length: 6mm
- Overall Length: 12mm
- Quantity per Pack: 6
- Head Type: Button Head
- Socket Type: Hex Socket
- Compatible Models: Axial 1/18 Yeti Electric 4WD RTR (AXID9054), Axial 1/18 Yeti Jr. Can-Am Maverick 4WD Brushed RTR (AXI90069)
- EAN Code: 816874016852
Overview
The AXIAL Hex Socket Button Shoulder Screw M2.5x6x12mm(6) is an essential replacement and upgrade component for RC enthusiasts in the UK who demand precision engineering and reliability in their model builds. Whether you are maintaining an existing Axial RC crawler, buggy or truck, or customising your setup with higher-specification fasteners, these shoulder screws represent genuine OEM (original equipment manufacturer) parts from Axial, a brand recognised for quality RC vehicles and components across the UK RC hobby community. This pack contains six individually engineered shoulder screws, each precisely machined to exacting tolerances to ensure perfect fitment and secure assembly in your RC car, crawler or truck.
Shoulder screws play a critical role in RC car construction, serving as pivot points and load-bearing fasteners in suspension systems, control arms, and drivetrain components. Unlike standard machine screws, shoulder screws feature a precisely engineered shoulder (the smooth cylindrical section between the head and the threaded portion), which creates a perfect bearing surface and prevents over-tightening that could damage delicate plastic or aluminium components. For RC builders in the UK who take their hobby seriously—whether you are a weekend basher, a competitive crawler pilot, or a meticulous scale crawler enthusiast—having genuine Axial replacement screws on hand is essential maintenance practice.
These M2.5x6x12mm hex socket button shoulder screws are compatible with popular Axial models including the 1/18 Yeti Electric 4WD RTR and the 1/18 Yeti Jr. Can-Am Maverick 4WD Brushed RTR, making them ideal replacement parts when original fasteners wear, strip or are lost during intensive RC car operation. The hex socket drive means you can apply precise torque using a standard RC model tool set, and the button head design provides a clean, professional appearance whilst keeping fastener weight minimal—an important consideration for any RC enthusiast optimising their vehicle's performance and handling characteristics.
Key Features
- Genuine Axial OEM Component — These are authentic manufacturer parts produced to the same specifications and tolerances used in Axial's factory-built RC vehicles, ensuring perfect compatibility and reliability across all your RC builds and repairs.
- Precision Shoulder Design — The engineered shoulder creates a smooth bearing surface that protects delicate RC components from damage, prevents over-tightening, and maintains consistent fitment even after repeated assembly and disassembly cycles during maintenance and upgrades.
- Hex Socket Head — The hex socket drive allows you to apply precise, controlled torque using standard RC hex key tools, giving you the mechanical advantage needed to tighten fasteners securely without stripping the socket or the screw itself.
- Optimised Dimensions — With an M2.5 thread diameter, 6mm shoulder length, and 12mm total length, these screws are engineered to fit perfectly in suspension mounts, pivot points, and control arm assemblies across Axial's range of RC crawlers and off-road vehicles.
- Pack of Six — You receive six individual screws in each pack, providing multiple replacement options or allowing you to upgrade several components in a single purchase, which is practical for UK RC hobbyists who maintain multiple vehicles.
- Button Head Profile — The button head design offers a compact, low-profile fastening solution that minimises weight, reduces snagging on terrain during off-road driving, and maintains the clean aesthetic of your RC model's mechanical assemblies.
Technical Performance
These shoulder screws represent precision engineering at the small-scale mechanical level where tolerances matter enormously. The M2.5 thread specification is a widely used fastener size across modern RC vehicles, particularly in Axial's portfolio of 1/18 and larger scale RC crawlers and buggies. The 6mm shoulder length is carefully calculated to provide adequate bearing surface whilst remaining compact enough for use in tightly-packed suspension and drivetrain assemblies where space is at a premium. The 12mm overall length positions these screws ideally for use as pivot fasteners in control arms, suspension links, and transmission components where they must pass through multiple component layers whilst maintaining secure clamping force. The hex socket drive (typically a 1.5mm or 2.0mm hex key, depending on screw design specifications from the manufacturer) allows precise torque application, which is critical in RC engineering where over-tightening can crack plastic bushings or damage aluminium bores, whilst under-tightening can lead to component flex and play during high-speed operation. Built to Axial's quality standards, these screws are manufactured from hardened steel or stainless steel alloys selected for corrosion resistance and fatigue strength, ensuring they maintain their holding power even in muddy, wet terrain conditions common in UK RC off-road driving and trail crawling.
What's in the Box
- Six Axial Hex Socket Button Shoulder Screws M2.5x6x12mm
Frequently Asked Questions
- Which Axial RC models are these shoulder screws compatible with? — These M2.5x6x12mm hex socket button shoulder screws are listed as compatible replacement parts for the Axial 1/18 Yeti Electric 4WD RTR and the Axial 1/18 Yeti Jr. Can-Am Maverick 4WD Brushed RTR models. However, the M2.5 thread size is a standard specification used across many Axial RC vehicles and similar-scale RC crawlers and buggies from other manufacturers, so they may fit other models with compatible suspension and drivetrain mounting points. Always verify fitment against your specific model's parts manual before ordering if you are uncertain.
- What is the difference between a shoulder screw and a standard machine screw? — A shoulder screw features a precisely engineered smooth cylindrical shoulder between the head and the threaded portion. This shoulder acts as a bearing surface and stops the fastener from being over-tightened into the component, protecting plastic and aluminium parts from cracking or deforming. Standard machine screws lack this feature and can be tightened straight through the component, risking damage. In RC applications where precision is essential, shoulder screws are superior for suspension pivot points and drivetrain assemblies.
- What hex key size do I need to install these screws? — The source material does not specify the exact hex socket size, but typical Axial M2.5 hex socket button screws use either a 1.5mm or 2.0mm hex key. Consult your Axial model's parts manual or the product packaging for the precise socket size. Most RC model tool sets include multiple hex key sizes, so you should be covered, but verify before installation.
- Are these screws waterproof or suitable for wet terrain? — These are metal fasteners and are inherently suitable for wet conditions. If manufactured from stainless steel or hardened steel with corrosion-resistant plating (which is standard for Axial components), they will resist rust and corrosion from muddy, wet off-road RC driving common in UK trail crawling and bashing. The source material does not specify a waterproof rating, but the material itself is weather-resistant and suitable for outdoor use.
- How often should I replace these screws? — Shoulder screws are durable components and can last thousands of driving hours under normal use. Replace them if you notice stripped threads, bent shanks, or damaged hex sockets that prevent proper tightening. It is good practice to keep a pack of replacement screws on hand for emergency repairs, particularly if you are a serious RC competitor or frequent weekend basher who puts high mileage on your vehicles.
- Can I use these screws on RC vehicles from other manufacturers? — The M2.5 thread size is a universal RC fastener specification used across many brands and scale ranges. However, the 6mm shoulder length and 12mm overall length are specific dimensions that must match your model's requirements precisely. Only use these screws if your vehicle's parts manual lists M2.5x6x12mm shoulder screws as compatible components, or if you are experienced in RC engineering and understand the implications of substituting fasteners.
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 AXIAL Hex Socket Button Shoulder Screw M2.5x6x12mm(6) Z-AX31490 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.
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