S-92981A306 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 minimum shear strength for reliable performance in high-stress applications
• Precision shoulder alignment with 10mm diameter and 40mm length providing stable bearing surfaces for rotating components
• Superior corrosion resistance through black oxide finish that protects against rust while maintaining dimensional stability
• Easy installation and removal with hex socket drive and knurled head texture for secure tool grip and torque application
• Consistent thread engagement with Class 5g6g thread fit ensuring precise mating with corresponding components
• Enhanced durability from Rockwell C32 hardened alloy steel that withstands wear and repeated assembly cycles
• Global compliance assurance meeting ISO 7379 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This M8 shoulder screw delivers critical engineering solutions for precision assemblies requiring accurate component positioning and rotational support. The 40mm shoulder length serves as a precise axle or pivot point in machinery, eliminating the need for additional bushings or spacers. Manufactured from high-strength alloy steel with black oxide finish, it provides excellent corrosion resistance in industrial environments while maintaining tight tolerances for shoulder diameter and length. The coarse thread pitch (1.25mm) ensures rapid assembly and disassembly, while the hex socket drive allows for high torque application in confined spaces. These precision shoulder screws are engineered to solve alignment challenges in automation equipment, conveyor systems, and precision mechanisms where dimensional accuracy and reliability are paramount.

Specification Summary & Compliance

This metric shoulder screw features M8x1.25 coarse threads with Class 5g6g thread fit tolerance, ensuring compatibility with standard metric components. The shoulder maintains precise dimensions with diameter tolerance of -0.072 to -0.01 mm and length tolerance of 0 to 0.25 mm. Manufactured according to ISO 7379 specifications, the screw complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict material compliance.