S-91352A158 M8 x 40 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 zinc-plated alloy steel construction, ideal for harsh industrial environments
- Maximum load-bearing capacity with Class 10.9 strength rating and 140,000 psi tensile strength for critical applications
- Superior vibration resistance through fully threaded M8 coarse pitch design that maintains secure fastening under stress
- Easy installation and removal with 5mm hex drive and rounded button head design requiring minimal clearance
- Precise thread engagement with Class 6g thread fit ensuring reliable performance in metric assemblies
- Enhanced durability with Rockwell C32 hardness providing excellent wear resistance over repeated use
- Global compliance assurance meeting ISO 7380 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These M8 x 1.25mm Class 10.9 metric rounded head screws deliver critical engineering solutions where vibration resistance and structural integrity are paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, automotive assemblies, and outdoor equipment exposed to moisture and chemicals. The fully threaded coarse pitch design ensures maximum thread engagement in both soft and hard materials, preventing loosening under dynamic loads. The button head profile with hex drive offers flush mounting with high torque capability, making them ideal for confined spaces in industrial equipment, manufacturing fixtures, and structural frameworks requiring reliable, high-strength fastening solutions.
Specification Summary & Compliance
This metric screw features precise M8 x 1.25mm coarse threading with Class 6g thread fit tolerance for consistent performance. Manufactured to ISO 7380 specifications with complete compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The 40mm length and fully threaded design provide versatile application coverage while maintaining the high mechanical properties of Class 10.9 strength grade alloy steel with Rockwell C32 hardness verification.
