S-92981A146 M4 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability and Corrosion Resistance with black oxide finish, ideal for harsh industrial environments
• High Tensile and Shear Strength (140,000 psi tensile, 84,000 psi shear) for reliable performance under heavy loads
• Precise Shoulder Positioning with controlled shoulder diameter and length tolerances for accurate component alignment
• Superior Thread Fit with Class 5g6g metric thread ensuring secure fastening and vibration resistance
• Easy Installation and Removal using standard 2.5 mm hex drive for efficient assembly in tight spaces
• Long Service Life thanks to alloy steel construction and Rockwell C32 hardness
• Global Compliance Assurance meeting ISO 7379, RoHS 3, and REACH standards for international projects

Professional Applications & Engineering Value

This M4 shoulder screw with black oxide finish and alloy steel construction addresses critical engineering challenges in precision assemblies. The precisely machined shoulder (5 mm diameter, 6 mm length) provides stable bearing surfaces for rotating components like gears and pulleys, eliminating misalignment issues. The Class 5g6g thread fit ensures consistent clamping force in metric thread applications, while the socket head design with 2.5 mm hex drive allows secure tightening in confined spaces common in machinery, automotive, and automation systems. Its high tensile strength (140,000 psi) and corrosion-resistant finish make it suitable for demanding environments where reliability and longevity are paramount.

Specification Summary & Compliance

This shoulder screw features M4 x 0.7 mm coarse metric thread with Class 5g6g tolerance for precise fit. Shoulder diameter tolerance is -0.072 to -0.01 mm and length tolerance is 0 to 0.25 mm. Manufactured to ISO 7379 specifications and fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.