S-91310A846 M16 x 55 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior wear resistance thanks to Rockwell C32 hardness, ensuring long service life in demanding environments
• Optimized thread engagement with coarse 2mm pitch for faster assembly and reduced cross-threading risks
• Secure fastening control through external hex drive design compatible with standard tools
• Precision-engineered fit with Class 6g thread tolerance ensuring consistent mating with nuts and threaded holes
• Versatile partial threading (38mm min thread length) providing both clamping force and unthreaded shank strength
• Full regulatory compliance meeting international ISO 4014/DIN 931 standards and environmental regulations

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Class 10.9 steel hex head screws deliver exceptional performance in construction, heavy machinery, and structural assemblies. The M16 metric coarse thread with 2mm pitch provides superior resistance to vibration loosening while enabling rapid installation in time-sensitive operations. The partially threaded design offers dual advantages: the threaded section ensures secure clamping while the unthreaded shank maintains structural integrity under shear loads. With external hex drive compatibility, these fasteners integrate seamlessly into existing tool systems, reducing installation time and minimizing specialized equipment requirements. The high-strength steel construction combined with precise Class 6g thread fit guarantees reliable performance in critical connections where failure is not an option.

Specification Summary & Compliance

This M16x2mm hex head screw features precision metric coarse threading with Class 6g thread tolerance and minimum 38mm thread length. Manufactured to ISO 4014/DIN 931 specifications with Class 10.9 strength rating, the fastener delivers 150,000 psi tensile strength and Rockwell C32 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.