S-90265A313 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Precise component alignment thanks to the 75mm shoulder with tight diameter tolerance, minimizing assembly play and vibration.
• High mechanical strength offering 70,000 psi tensile and 45,000 psi shear strength for demanding applications.
• Secure, tamper-resistant fastening with a knurled hex socket head for improved grip and torque application.
• Consistent thread engagement with Class 5g6g thread fit and coarse pitch for quick, reliable installation.
• Global compliance assurance meeting ISO 7379 standards and environmental regulations like RoHS 3 and REACH.
• Enhanced durability from Rockwell B83 hardness, resisting wear and deformation under load.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and load-bearing challenges in precision assemblies. The 75mm shoulder length and controlled diameter tolerance provide a stable pivot or bearing surface, eliminating the need for additional bushings in machinery, automation systems, and rotating equipment. Manufactured from 18-8 stainless steel, it resists rust and chemical exposure, making it ideal for food processing, medical devices, and outdoor applications. The hex socket drive and coarse thread pitch enable efficient installation in tight spaces, reducing assembly time while maintaining high shear strength to prevent joint failure under dynamic stresses.

Specification Summary & Compliance

The screw features a Class 5g6g thread fit per ISO metric standards, with shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm for precise fit. It conforms to ISO 7379 manufacturing specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries.