S-90278A358 M10 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Precise component alignment ensured by a 45mm shoulder with a tight +0.05mm length tolerance for stable assembly and reduced wear.
• High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing in demanding applications.
• Secure and efficient installation using a standard 6mm hex socket drive, providing a positive grip and reducing the risk of tool slippage.
• Optimized thread engagement with a coarse M10x1.5 thread and Class 6g fit, facilitating faster assembly and robust fastening.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant, ensuring safety and suitability for global markets.
• Durable and smooth finish with a smooth head texture, minimizing friction and potential damage to mating surfaces.

Professional Applications & Engineering Value

This precision M10 shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in moist or chemically aggressive environments. The defining 45mm shoulder length with its precise tolerance acts as a pivot, bearing surface, or locator, ensuring components like gears, pulleys, and linkages maintain exact positioning, which reduces vibration and premature failure. The coarse thread (M10x1.5) and Class 6g thread fit allow for quick and secure fastening, even in materials where fine threads might strip. Combined with the 6mm hex socket drive, this socket head shoulder screw offers a reliable solution for high-stress assemblies in automation, automotive, and precision equipment manufacturing, where repeatable accuracy and long-term reliability are paramount.

Specification Summary & Compliance

This metric shoulder screw features an M10 thread with a 1.5mm pitch and a Class 6g thread fit per standard metric tolerances. The shoulder diameter is 12mm with a tolerance of -0.025 to 0 mm, and the shoulder length is 45mm with a +0.05mm tolerance, ensuring precise fit for alignment-critical applications. Manufactured from 18-8 Stainless Steel, it conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its compliance for use in products sold in the EU and other regulated markets.