S-91290A452 M8 x 55 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws
Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional strength-to-weight ratio with Class 12.9 rating and 170,000 psi tensile strength for maximum load-bearing capacity in demanding applications
- Superior corrosion resistance through black-oxide surface treatment, extending service life in harsh industrial environments
- Precise torque transmission with 6mm hex drive and standard socket head profile ensuring secure installation without stripping
- Optimized thread engagement with Class 5g6g thread fit and M8x1.25mm coarse pitch for reliable fastening in various materials
- Versatile partial threading design allowing both clamping and alignment functions in assembly operations
- Consistent dimensional accuracy meeting DIN 912/ISO 4762 specifications for interchangeability across global applications
- Regulatory compliance assurance with RoHS 3 and REACH compliance for environmentally responsible manufacturing
Professional Applications & Engineering Value
This M8 socket head cap screw delivers critical performance advantages in industrial settings where vibration resistance and structural integrity are paramount. The black-oxide alloy steel construction provides enhanced surface protection against oxidation and chemical exposure, while the Rockwell C37 hardness maintains dimensional stability under extreme mechanical stress. Engineers specify these metric socket screws for machinery assembly, automotive components, and precision equipment where the partially threaded design enables precise clamping force distribution. The coarse thread pitch ensures rapid installation and reliable holding power in both metallic and composite materials, reducing assembly time while maintaining the 170,000 psi tensile strength required for safety-critical connections.
Specification Summary & Compliance
Manufactured to DIN 912/ISO 4762 standards with Class 5g6g thread fit tolerance ensuring precise engagement. The 55mm length with 28mm minimum thread length provides consistent fastening performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international requirements for hazardous substance restrictions and chemical safety in industrial components.
