S-91290A432 M8 x 25 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 durability with Class 12.9 strength rating and 170,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through black-oxide coating that protects against rust and extends service life
- Precise installation and removal with 6mm hex drive socket head design for secure tool engagement and reduced stripping risk
- Optimal thread engagement with M8 coarse thread (1.25mm pitch) ensuring faster assembly and better vibration resistance
- Maximum fastening versatility through fully threaded design allowing adjustment along the entire 25mm length
- Consistent quality assurance with Rockwell C37 hardness providing uniform mechanical properties batch after batch
- Global compatibility meeting DIN 912/ISO 4762 standards for interchangeability in international projects
Professional Applications & Engineering Value
These Class 12.9 alloy steel socket head cap screws deliver critical performance where failure is not an option. The black-oxide surface treatment creates a protective barrier against corrosive environments while maintaining dimensional stability. Engineered with M8 coarse threading (1.25mm pitch), these fasteners provide superior resistance to vibrational loosening in heavy machinery, automotive assemblies, and industrial equipment. The fully threaded design enables flexible positioning in precision jigs, fixtures, and structural frameworks. With their 170,000 psi tensile strength, they withstand extreme dynamic loads in manufacturing, construction, and aerospace applications where reliability under stress is paramount.
Specification Summary & Compliance
Manufactured to exacting DIN 912/ISO 4762 specifications with Class 5g6g thread fit ensuring precise dimensional accuracy. These metric socket head cap screws feature M8 x 1.25mm coarse threads in right-hand orientation with 25mm fully threaded length. The assembly meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, making them suitable for regulated industries worldwide while maintaining the mechanical integrity required for critical fastening applications.
