S-92981A310 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 140,000 psi tensile strength and 84,000 psi shear strength for reliable performance in high-stress applications.
• Precision alignment and reduced wear thanks to the smooth, 80mm long shoulder that acts as a pivot or bearing surface.
• Superior corrosion resistance and reduced light reflection from the durable Black Oxide finish, extending service life in demanding environments.
• High-strength and durable core material made from Alloy Steel with a Rockwell C32 hardness for excellent wear resistance.
• Secure and reliable fastening ensured by the M8x1.25 coarse thread with Class 5g6g fit, providing consistent engagement and vibration resistance.
• Easy installation and high torque capability with the 5mm hex socket drive, allowing for a secure grip in confined spaces.
• Guaranteed quality and material safety through compliance with ISO 7379, RoHS 3, and REACH standards.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to solve critical alignment and pivot point challenges in industrial machinery. The 80mm shoulder length provides a precise, unthreaded bearing surface that minimizes wear on mating components in assemblies like linkages, gears, and rotating fixtures. Manufactured from high-strength Alloy Steel and finished with a protective Black Oxide coating, it resists corrosion and withstands high dynamic loads. The coarse metric thread (M8x1.25) and Class 5g6g thread fit ensure rapid assembly and reliable performance even in vibrating environments. This makes the screw an ideal, ISO 7379 certified component for automation equipment, automotive jigs, and precision manufacturing tools where dimensional accuracy and durability are paramount.

Specification Summary & Compliance

This precision shoulder screw features an M8x1.25 coarse thread with a Class 5g6g thread fit. The shoulder diameter is 10 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 80 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. The product is manufactured in accordance with ISO 7379 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.