S-90187A112 M8 x 2 9/16" ISO 4017, DIN 933 Tight-Spot Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Exceptional load-bearing capacity with Class 8.8 strength rating and 110,000 psi tensile strength for critical structural applications
• Reliable vibration resistance through expanding sleeve locking technology that prevents loosening under dynamic loads
• Optimized installation efficiency with external hex drive and coarse thread design for faster assembly in various material thicknesses (7/8"-1 5/8")
• Precision thread engagement with Class 6g tolerance and fully threaded design ensuring consistent clamping force distribution
• Enhanced shear performance with 69,600 lbs./sq. in. shear strength and Rockwell C22 hardness for demanding mechanical applications
• Global compliance assurance meeting ISO 4017/DIN 933 standards with RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

These M8 hex head screws with 1.25mm coarse thread pitch deliver exceptional engineering value in industrial fastening applications. The zinc-plated steel construction provides reliable corrosion protection for machinery, structural frameworks, and equipment exposed to demanding environmental conditions. The expanding sleeve locking mechanism effectively counters vibration-induced loosening in automotive assemblies, manufacturing equipment, and construction applications. With Class 8.8 strength rating and 110,000 psi tensile strength, these fully threaded fasteners maintain structural integrity under heavy loads while the external hex drive enables efficient installation using standard tools. The metric coarse threading ensures quick engagement and reliable performance across the specified material thickness range of 7/8" to 1 5/8".

Specification Summary & Compliance

Manufactured to ISO 4017/DIN 933 standards with Class 6g thread tolerance for precision fit. Features M8 x 1.25mm coarse metric threading with right-hand thread direction and fully threaded design. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The Class 8.8 strength classification ensures consistent mechanical properties with verified Rockwell C22 hardness and 69,600 lbs./sq. in. shear strength.