S-90318A910 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high stress.
• Precise component alignment ensured by a 6mm diameter shoulder with a precise fit, reducing wear and misalignment in assemblies.
• Space-saving ultra-low profile head with a smooth texture and 3mm hex drive for applications with limited clearance.
• Robust and reliable coarse threading (M5x0.8) with Class 6g fit for quick assembly and secure fastening in various materials.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global industrial markets.
• Optimized shoulder dimensions (12mm length with tight tolerance) for accurate positioning and stable rotational control.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to solve critical alignment and durability challenges in industrial applications. Manufactured from 316 stainless steel, it offers excellent resistance to chemicals and corrosion, making it suitable for machinery, automotive, and marine environments. The ultra-low profile hex socket head allows for installation in confined spaces while providing high torque transmission. The precise shoulder (6mm diameter, 12mm length) acts as a pivot or bearing surface, ensuring accurate component location and reducing shear stress on threads. Combined with a coarse metric thread (M5x0.8) and Class 6g fit, it delivers fast assembly and reliable performance in dynamic or high-vibration settings, minimizing maintenance and downtime.

Specification Summary & Compliance

This shoulder screw features a metric thread (M5x0.8) with Class 6g tolerance for precise fit. The shoulder diameter is 6mm with a tolerance of -0.025 to 0 mm, and the shoulder length is 12mm with a tolerance of 0 to 0.05 mm, ensuring exact alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial fasteners.