S-90278A417 M8 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 12mm shoulder with a precise fit, minimizing play and vibration in assemblies.
• High-strength performance offering a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing applications.
• Secure and efficient installation with a 5mm hex socket drive, providing high torque transfer and reducing the risk of tool slippage.
• Wide compatibility with Class 6g thread fit and M8x1.25 coarse thread, ensuring easy assembly and interchangeability in metric systems.
• Durable, smooth head design with a 14mm diameter for a flush finish and reduced risk of snagging in machinery.
• Compliance with global standards, being RoHS 3 and REACH compliant, meeting stringent environmental and safety regulations for B2B use.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and component wear. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in automotive, electronics, and food processing industries where hygiene and durability are paramount. The 12mm shoulder length with precise tolerances ensures accurate positioning of parts like gears and pulleys, reducing maintenance needs and downtime. Combined with a 5mm hex drive and coarse M8x1.25 threads, it allows for quick, secure fastening in high-vibration environments, enhancing overall assembly reliability and efficiency for industrial users.

Specification Summary & Compliance

This metric shoulder screw features a Class 6g thread fit for standard metric applications, with a shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm to ensure precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.