S-98451A139 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance and electrical conductivity from 360 Brass material, ideal for harsh environments and electronic assemblies.
• Precise component alignment and reduced wear with exact shoulder dimensions (10mm diameter, 8mm length) and tight tolerances for stable positioning.
• High mechanical strength and durability offering Rockwell B55 hardness and 40,000 psi tensile strength for reliable performance under stress.
• Easy installation and removal with a 5mm hex drive socket head, minimizing tool slippage and speeding up assembly processes.
• Accurate and secure threading using Class 6g fit and coarse M8x1.25mm metric threads for quick fastening and vibration resistance.
• Compliance with environmental and safety standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
• Smooth head texture and standard profile for a clean finish and compatibility with various tools and applications.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in precision machinery. Constructed from 360 Brass, it provides excellent corrosion resistance and electrical conductivity, making it suitable for electronics, marine, and automotive applications where environmental factors are a concern. The precise shoulder fit with tight diameter and length tolerances ensures accurate positioning of parts like bearings and gears, reducing assembly time and maintenance costs. With a socket head hex drive and Class 6g thread, it offers reliable fastening in high-vibration settings, enhancing the longevity and efficiency of your equipment while meeting strict industry standards for safety and performance.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with precise dimensions: shoulder diameter of 10mm (tolerance: -0.025 to 0 mm) and shoulder length of 8mm (tolerance: 0 to 0.05 mm). Thread specifications include M8x1.25mm coarse pitch with Class 6g fit for consistent performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006), ensuring environmental and health safety in industrial use.