S-90265A754 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant performance with 18-8 stainless steel and black oxide finish for extended service life in harsh industrial environments.
• High-strength reliability offering 70,000 psi tensile and 45,000 psi shear strength to withstand heavy-duty mechanical loads.
• Precise alignment and spacing enabled by the 40mm shoulder with controlled tolerances, reducing component wear and misalignment.
• Secure, non-slip installation thanks to the knurled hex socket head design, allowing high-torque application without tool slippage.
• Consistent thread engagement with M8x1.25 coarse threads and Class 5g6g fit, ensuring quick assembly and vibration resistance.
• Global compliance and safety meeting ISO 7379 standards, RoHS 3, and REACH for use in regulated and international markets.
• Durable surface hardness rated at Rockwell B83, providing excellent resistance to deformation under stress.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and load-bearing challenges in machinery, automation, and precision equipment. The 18-8 stainless steel construction, combined with a black oxide finish, ensures corrosion resistance in humid or chemically exposed settings, while the 40mm shoulder length acts as a precise pivot or spacer, minimizing fretting and maintaining component positioning. The coarse metric thread (M8x1.25) and Class 5g6g thread fit enable rapid installation and reliable performance in high-vibration applications such as motor mounts, conveyor systems, and robotic arms. With a knurled hex socket head, operators achieve secure torque transmission, reducing assembly errors and enhancing workplace safety. Ideal for OEMs and MRO suppliers, this shoulder screw delivers long-term reliability and compliance with international specifications.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 for dimensional consistency, with thread specifications following Class 5g6g tolerance for precise fit. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring accurate alignment in assemblies. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances for safe industrial use.