S-91280A976 M6 x 55 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments
• High tensile strength of 110,000 psi ensures reliable performance under heavy loads and vibrations
• Class 8.8 strength grade provides consistent durability for demanding mechanical applications
• Fully threaded design offers maximum grip and uniform load distribution along the entire length
• External hex head with 10 mm width allows for easy installation and high torque application with standard tools
• Precise Class 6h thread fit guarantees secure fastening and reduces the risk of loosening
• Compliance with ISO 4017 DIN 933 standards ensures interchangeability and global engineering acceptance

Professional Applications & Engineering Value

Engineered for industrial applications requiring robust and reliable fastening, this M6 hex head screw delivers exceptional performance in machinery assembly, structural frameworks, and heavy equipment. The Class 8.8 steel construction, combined with Rockwell C21 hardness, resists deformation under stress, while the fully threaded metric screw design ensures maximum engagement in tapped holes or with nuts. The zinc plated finish provides a protective barrier against moisture and chemicals, addressing common corrosion issues in outdoor or humid environments. With a coarse thread pitch of 1 mm and right-hand thread direction, it enables quick installation and secure connections, reducing assembly time and maintenance costs in construction and manufacturing sectors.

Specification Summary & Compliance

This fully threaded fastener features an M6 x 1 mm thread with Class 6h tolerance for precise fit, adhering to ISO 4017 DIN 933 specifications for dimensional accuracy and performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory acceptance in global markets.