S-91239A136 M4 x 5 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 durability with Class 10.9 strength rating and 140,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance from black-oxide coating on alloy steel, extending service life in demanding industrial environments
- Precise thread engagement with M4 x 0.7 mm coarse spacing and Class 6g fit ensuring secure, vibration-resistant fastening
- Optimized drive efficiency through 2.5 mm hex drive design providing maximum torque transfer and reduced cam-out risk
- Space-saving rounded button head profile offering low-profile installation while maintaining high clamping force
- Full thread coverage along the 5 mm length for maximum grip and load distribution across the entire fastener
- Industry compliance assurance meeting ISO 7380 specifications and environmental standards for global project acceptance
Professional Applications & Engineering Value
These M4 hex screws with Class 10.9 strength rating and black-oxide alloy steel construction address critical engineering challenges in industrial assembly. The fully threaded metric screw design with 0.7 mm coarse pitch provides rapid installation and superior resistance to vibrational loosening in machinery, automotive, and equipment manufacturing applications. The rounded button head profile minimizes protrusion while the Rockwell C32 hardness ensures consistent performance under repeated loading cycles. Engineered for demanding industrial environments, these fasteners deliver reliable clamping force where corrosion resistance and high tensile strength are essential for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
This metric fastener features precise Class 6g thread fit tolerance with M4 x 0.7 mm coarse thread spacing and right-hand threading. Manufacturing complies with ISO 7380 specifications for dimensional accuracy and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring suitability for regulated industrial applications worldwide.
