S-91239A774 M12 x 55 mm ISO 7380 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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 corrosion resistance from black-oxide coating, extending service life in harsh industrial environments
- Superior load-bearing capacity with Class 10.9 strength grade and 140,000 psi tensile strength for critical applications
- Optimized installation efficiency through 8mm hex drive design and fully threaded shank for rapid assembly
- Precision thread engagement with Class 6g fit and M12x1.75mm coarse pitch ensuring reliable fastening
- Enhanced durability from Rockwell C32 hardness maintaining structural integrity under repeated stress
- Streamlined head profile with rounded button design reducing snag points in confined spaces
- Global compliance assurance meeting ISO 7380, RoHS 3, and REACH standards for international projects
Professional Applications & Engineering Value
Engineered for demanding industrial assemblies, these metric hex button head screws deliver critical performance where vibration resistance and structural integrity are paramount. The black-oxide alloy steel construction provides superior protection against oxidation in manufacturing environments, while the Class 10.9 rating ensures reliable performance in heavy machinery, automotive subsystems, and construction equipment. The fully threaded M12 design with 1.75mm coarse pitch enables rapid installation in high-volume production lines, with the rounded head profile eliminating interference issues in recessed mounting applications. These ISO 7380 compliant fasteners maintain dimensional consistency across global supply chains, reducing assembly errors and warranty claims.
Specification Summary & Compliance
Manufactured to ISO 7380 specifications with Class 6g thread tolerance for precision fit. The metric coarse thread (M12x1.75mm) ensures compatibility with standard components, while the 55mm length provides versatile fastening solutions. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe use across regulated industries. The right-hand thread direction and standard rounded head profile maintain interoperability with existing tooling and assembly processes.
