S-91029A109 M8 x 60 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with Class 12.9 strength rating and 170,000 PSI tensile strength for reliable performance in high-stress environments
• Superior corrosion resistance through zinc yellow-chromate plating that extends service life in demanding industrial conditions
• Optimized thread engagement with M8 coarse threading (1.25mm pitch) ensuring faster installation and reduced cross-threading risks
• Maximum thread coverage with fully threaded design providing consistent clamping force along the entire 60mm length
• Precise torque transmission via external hex drive and 13mm head width for secure tool engagement and reduced stripping
• Enhanced durability with Rockwell C39 hardness maintaining structural integrity under repeated loading cycles
• Global compatibility meeting both DIN 933 and ISO 4017 standards for seamless integration into international projects

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these M8 hex head screws deliver critical performance where vibration resistance and structural integrity are paramount. The Class 12.9 steel construction combined with zinc yellow-chromate plating addresses common failure points in machinery, construction, and automotive assemblies by providing exceptional corrosion protection while maintaining 170,000 PSI tensile strength. The fully threaded metric coarse design ensures maximum thread contact in both metals and composites, while the external hex drive facilitates efficient installation in confined spaces. These ISO 4017/DIN 933 compliant fasteners are specifically designed to withstand extreme mechanical stresses in structural steel connections, heavy equipment manufacturing, and industrial machinery where reliability cannot be compromised.

Specification Summary & Compliance

This metric hex head screw features M8×1.25 coarse threading with Class 6h thread fit tolerance ensuring precise engagement. The 60mm length provides optimal fastening depth while maintaining ISO 4017 manufacturing specifications identical to DIN 933 standards. Manufacturing complies with international fastener requirements including RoHS and REACH environmental directives, with material certification verifying the Class 12.9 strength rating and Rockwell C39 hardness specifications.