S-91239A444 M8 x 45 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, extending service life in harsh industrial environments
- Superior tensile strength (140,000 psi) for reliable performance in high-stress applications
- Class 10.9 strength grade ensures consistent load-bearing capacity and structural integrity
- 5mm hex drive design provides secure tool engagement and prevents stripping during installation
- Fully threaded M8 coarse pitch enables faster installation and superior holding power
- Rockwell C32 hardness maintains thread integrity and prevents deformation under heavy loads
- Rounded button head profile offers a low-profile finish while minimizing snagging risks
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these M8 metric screws combine black-oxide alloy steel construction with Class 10.9 strength certification to solve critical fastening challenges. The fully threaded coarse pitch design (1.25mm) ensures rapid installation in machinery, automotive assemblies, and structural frameworks where vibration resistance is paramount. The hex drive configuration (5mm) prevents cam-out issues during high-torque applications, while the rounded button head provides a flush finish that eliminates protrusion hazards in confined spaces. This combination of high tensile strength and corrosion-resistant surface treatment makes these screws ideal for outdoor equipment, manufacturing fixtures, and heavy-duty mechanical systems requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
Manufactured to ISO 7380 standards with Class 6g thread fit tolerance for precision engagement. The 45mm length and M8 x 1.25mm coarse thread specification ensures compatibility with standard metric components. Compliance certifications include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to international safety and sustainability standards for industrial fasteners.
