S-91290A446 M8 x 45 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide coating on alloy steel extends service life in harsh industrial environments.
• High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity through repeated use.
• Precise Class 5g6g thread fit guarantees smooth installation and secure fastening with minimal play.
• Partially threaded design allows for optimal clamping force distribution and easier alignment in assemblies.
• Standard hex drive (6mm) enables quick and secure tool engagement, speeding up installation and maintenance.
• Compliance with DIN 912/ISO 4762 standards ensures interchangeability and reliability in global engineering projects.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this M8 socket head cap screw combines Class 12.9 high-strength alloy steel with a black-oxide surface treatment to combat corrosion and wear in machinery, automotive, and heavy equipment applications. The coarse 1.25mm pitch metric thread and right-hand thread direction facilitate rapid assembly in high-vibration environments, while the partially threaded shank concentrates clamping force precisely where needed. With a robust hex drive and compliance with DIN 912/ISO 4762, it delivers consistent performance, reducing downtime and maintenance costs in critical fastening joints.

Specification Summary & Compliance

This screw adheres to Class 5g6g thread fit tolerances per metric standards, with a minimum thread length of 28mm and overall length of 45mm. It meets DIN 912 (identical to ISO 4762) for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.