S-90265A117 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced durability and strength with Rockwell B55 hardness and 70,000 psi tensile strength, ensuring reliable performance under high-stress conditions.
• Precise alignment and spacing thanks to the 4mm shoulder diameter and 5mm shoulder length with tight tolerances, reducing assembly errors.
• Secure, non-slip fastening enabled by the knurled head and hex socket drive with 2mm drive size, allowing for easy installation with standard tools.
• Consistent thread performance with Class 5g6g metric thread (M3x0.5mm coarse pitch), providing reliable engagement and vibration resistance.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries and global markets.
• Versatile right-hand thread design for standard applications, facilitating quick assembly and disassembly in machinery and equipment.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address common industrial challenges such as misalignment and corrosion in precision assemblies. Made from 18-8 stainless steel, it offers excellent resistance to rust and chemicals, making it suitable for automotive, electronics, and machinery sectors where environmental factors are a concern. The hex socket head with knurling ensures a firm grip during installation, reducing tool slippage and damage. With a coarse pitch thread and precise shoulder dimensions, it provides stable pivoting and spacing in rotating parts, bushings, and linkages, minimizing wear and maintenance costs. Its high tensile and shear strength supports heavy-duty applications, ensuring long-term reliability in dynamic environments.

Specification Summary & Compliance

This shoulder screw features a metric M3x0.5mm coarse pitch thread with Class 5g6g tolerance for precise fit and performance. Dimensions include a shoulder diameter of 4mm (tolerance: -0.072 to -0.01 mm) and shoulder length of 5mm (tolerance: 0 to 0.25 mm), ensuring accurate alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.