S-91290A190 M4 x 70 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 and durability with Class 12.9 rating and 170,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance provided by black-oxide coating on alloy steel, extending service life in harsh industrial environments
- Precise torque transmission through 3mm hex drive design, ensuring secure fastening and reducing tool slippage
- Optimized thread engagement with Class 5g6g thread fit and 20mm minimum thread length for consistent clamping force
- Industry-standard compatibility meeting DIN 912/ISO 4762 specifications for seamless integration into existing assemblies
- Enhanced wear resistance with Rockwell C37 hardness, maintaining dimensional stability under heavy loads
- Environmental compliance assurance through RoHS 3 and REACH regulations, supporting sustainable manufacturing practices
Professional Applications & Engineering Value
These M4 socket head cap screws deliver critical engineering solutions where high-strength fastening is paramount. The black-oxide alloy steel construction provides superior protection against corrosion while maintaining the Class 12.9 strength rating essential for heavy machinery, automotive assemblies, and precision equipment. The partially threaded design with coarse 0.7mm pitch ensures rapid installation and optimal load distribution, while the 3mm hex drive accommodates standard tools for efficient maintenance. Ideal for industrial applications requiring 170,000 psi tensile strength, these metric screws prevent joint failure in high-vibration environments, offering engineers reliable performance in demanding conditions from manufacturing fixtures to robotics systems.
Specification Summary & Compliance
Manufactured to precise Class 5g6g thread fit tolerances with 20mm minimum thread length and 70mm overall length. Fully compliant with DIN 912/ISO 4762 standards for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
