S-91274A118 M4 x 12 mm ASTM B117, DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with Class 12.9 rating and 170,000 psi tensile strength, ensuring reliable performance in high-stress applications.
• Superior corrosion resistance from zinc-flake coating, extending service life in harsh industrial environments.
• Precise and secure fastening with M4 coarse thread (0.7mm pitch) and Class 5g6g fit, providing excellent grip and vibration resistance.
• Easy installation and removal using a standard 3mm hex drive, reducing assembly time and tool wear.
• High hardness (Rockwell C37) for increased wear resistance and reduced risk of stripping or deformation during tightening.
• Full thread design allows for consistent clamping force along the entire 12mm length, ideal for varied material thicknesses.
• Compliance with international standards including DIN 912 and ISO 4762, ensuring interchangeability and quality assurance.

Professional Applications & Engineering Value

This M4 socket head cap screw is engineered for demanding industrial applications where reliability and precision are critical. Made from zinc-flake-coated alloy steel, it addresses common issues like corrosion and mechanical failure in machinery, automotive assemblies, and heavy equipment. The Class 12.9 strength and coarse metric thread provide robust fastening that withstands high vibrations and loads, reducing maintenance downtime. Its hex drive design ensures easy access in confined spaces, while the fully threaded rod offers versatile mounting options. Ideal for use in construction, aerospace, and manufacturing sectors, this screw delivers long-term performance and cost savings by minimizing replacements.

Specification Summary & Compliance

This product features precise metric coarse threads (M4 x 0.7mm) with a Class 5g6g thread fit for standard tolerance, ensuring compatibility with metric nuts and tapped holes. It complies with DIN 912 and ISO 4762 specifications for dimensional accuracy and ASTM B117 for corrosion testing. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it safe for various industrial uses without hazardous substances.