S-91280A286 M8 x 80 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Class 8.8 strength rating and 110,000 psi tensile strength for reliable performance in demanding applications
• Enhanced corrosion resistance with black steel construction providing basic protection in industrial environments
• Easy installation and removal thanks to the external hex head design that accommodates standard wrench tools
• Optimized thread engagement with coarse 1.25mm pitch and Class 6g thread fit ensuring secure fastening in various materials
• Versatile partial threading with 22mm minimum thread length allowing for both clamping and alignment functions
• Consistent dimensional accuracy manufactured to ISO 4014 DIN 931 specifications for reliable interchangeability
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe use across industries

Professional Applications & Engineering Value

This M8 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and precision metric coarse threading. The combination of 110,000 psi tensile strength and Rockwell C21 hardness ensures reliable performance in structural applications where vibration resistance and load distribution are critical. The partially threaded design provides both clamping force through the threaded section and alignment stability along the shank, making it ideal for machinery assembly, equipment frames, and structural steel connections. The external hex drive enables high-torque installation without stripping, while the black finish offers basic corrosion protection for indoor industrial environments. Engineered to ISO 4014 DIN 931 standards, this fastener maintains dimensional consistency for replacement and maintenance operations across global projects.

Specification Summary & Compliance

This hex head screw features precise M8 x 1.25mm coarse threading with Class 6g thread fit tolerance and 22mm minimum thread length. Manufactured to ISO 4014 DIN 931 specifications with 80mm total length, 13mm head width, and 5.4mm head height. The fastener meets Class 8.8 mechanical properties with 110,000 psi tensile strength and Rockwell C21 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.