S-91274A145 M8 x 12 mm ASTM B117, DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Class 12.9 rating and 170,000 psi tensile strength, ensuring secure fastening in high-stress applications
• Superior corrosion resistance provided by zinc-flake coating, extending service life in harsh industrial environments
• Precision hex socket drive with 6mm drive size for secure tool engagement and reduced risk of stripping during installation
• Optimized thread design with M8 coarse thread (1.25mm pitch) and Class 5g6g fit for quick assembly and reliable performance
• Full thread coverage along the 12mm length for maximum grip and uniform stress distribution
• High hardness rating of Rockwell C37 for excellent wear resistance and durability under repeated use
• Comprehensive compliance with international standards including ISO 4762, DIN 912, and environmental regulations

Professional Applications & Engineering Value

This high-strength socket head cap screw delivers exceptional engineering value across demanding industrial applications. The zinc-flake-coated alloy steel construction provides superior corrosion protection, solving common failure points in machinery exposed to moisture, chemicals, or outdoor conditions. The M8 coarse thread with Class 5g6g fit ensures rapid assembly while maintaining precise tolerances, reducing installation time without compromising joint integrity. With its fully threaded design and 170,000 psi tensile strength, this fastener distributes clamping forces evenly, preventing loosening in vibrating environments common in automotive, manufacturing, and heavy equipment applications. The hex socket drive allows for high torque application in confined spaces, making it ideal for precision assemblies where reliability is critical.

Specification Summary & Compliance

This precision socket head cap screw features M8 x 1.25mm coarse threads with Class 5g6g thread fit according to ISO metric standards. The component maintains dimensional accuracy per ISO 4762 and DIN 912 specifications, ensuring interchangeability and reliable performance. Manufacturing and material standards comply with ASTM B117 for corrosion testing, while environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, making it suitable for global industrial applications with strict regulatory standards.