S-91290A887 M30 x 130 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with 170,000 psi rating ensures reliable performance under extreme loads and vibrations
• Superior corrosion resistance from black-oxide coating extends service life in harsh industrial environments
• Precision thread fit (Class 5g6g) guarantees smooth installation and secure fastening in demanding applications
• High hardness (Rockwell C37) provides excellent wear resistance and maintains thread integrity through repeated use
• Optimized head design with 22mm hex drive allows for high torque application and easy access in confined spaces
• Partially threaded configuration enables precise clamping force distribution and reduces material stress concentrations
• Full regulatory compliance with DIN 912/ISO 4762, RoHS 3, and REACH ensures environmental and safety standards are met

Professional Applications & Engineering Value

These M30 socket head cap screws deliver critical engineering solutions for heavy machinery, automotive assemblies, and industrial equipment where high tensile strength and corrosion resistance are paramount. The black-oxide alloy steel construction combined with Class 12.9 strength rating prevents failure under dynamic loads and extreme conditions. The coarse 3.5mm pitch metric thread ensures rapid assembly and superior holding power in structural applications, while the 22mm hex drive accommodates standard industrial tools for efficient maintenance. Engineered to DIN 912/ISO 4762 specifications, these partially threaded fasteners provide optimal stress distribution, making them ideal for precision engineering applications requiring reliable, long-term performance.

Specification Summary & Compliance

Manufactured to Class 5g6g thread fit tolerance standards with M30x3.5mm coarse thread configuration and 130mm length (72mm minimum thread length). Fully compliant with DIN 912/ISO 4762 mechanical and dimensional specifications, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) regulations for chemical safety. The Rockwell C37 hardness and 170,000 psi tensile strength meet the rigorous demands of Class 12.9 strength classification for industrial fastening applications.