S-91239A426 M8 x 20 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 with black-oxide coating, ideal for harsh industrial environments
- High tensile strength of 140,000 psi ensures reliable performance in heavy-duty applications
- Class 10.9 strength grade provides superior load-bearing capacity and fatigue resistance
- Rockwell C32 hardness maintains structural integrity under extreme mechanical stress
- Full metric threading with coarse pitch enables faster installation and secure fastening
- Hex drive design allows for high-torque application with standard tools
- ISO 7380 compliance guarantees dimensional accuracy and international compatibility
Professional Applications & Engineering Value
These Class 10.9 rounded head hex screws deliver critical engineering solutions where vibration resistance and structural integrity are paramount. The black-oxide alloy steel construction provides superior protection against corrosion in demanding environments like automotive assemblies, heavy machinery, and construction equipment. With fully threaded M8 coarse pitch design, these fasteners ensure maximum thread engagement and prevent loosening under dynamic loads. The hex drive system facilitates high-torque installation in confined spaces, while the rounded head profile eliminates sharp edges for enhanced safety. Engineered to withstand extreme mechanical stress with 140,000 psi tensile strength, these ISO 7380 compliant screws offer reliable performance in critical industrial applications where fastener failure is not an option.
Specification Summary & Compliance
Manufactured to exact ISO 7380 standards with Class 6g thread fit tolerance for precision mating. Features fully threaded M8x1.25mm coarse pitch with right-hand threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global markets. The black-oxide surface treatment provides consistent corrosion protection while maintaining dimensional stability per international metric specifications.
