S-90447A280 M10 x 55 mm DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Class 10.9 strength grade provides superior load-bearing capacity and fatigue resistance for demanding industrial environments.
• Fully threaded M10 coarse pitch design offers faster installation and improved vibration resistance compared to fine thread alternatives.
• Rockwell C32 hardness maintains thread integrity and prevents stripping during repeated assembly and disassembly cycles.
• External hex drive with 17mm head delivers secure tool engagement and high torque transmission without cam-out issues.
• Class 6g thread fit ensures precise mating with nuts and threaded holes for consistent clamping force distribution.
• Black steel construction provides basic corrosion resistance while maintaining cost-effectiveness for industrial applications.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these M10 hex head screws solve critical fastening challenges in machinery assembly, structural frameworks, and equipment manufacturing. The Class 10.9 steel composition delivers exceptional tensile strength and Rockwell C32 hardness, preventing thread deformation under extreme loads. The coarse thread spacing with 1.5mm pitch ensures rapid installation in both metallic and composite materials while providing superior resistance to vibration loosening. The fully threaded metric coarse thread design allows for maximum thread engagement throughout the 55mm length, distributing stress evenly across the entire fastener. These black steel fasteners with external hex drive are particularly valuable in automotive, construction, and industrial equipment where high tensile strength and reliable performance are non-negotiable requirements.

Specification Summary & Compliance

This M10 x 55mm hex head screw features Class 6g thread fit tolerance per ISO metric standards, ensuring precise dimensional accuracy. Manufacturing strictly adheres to DIN 933 specifications for dimensional and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) hazardous substance restrictions and REACH (EC 1907/2006) regulations regarding chemical safety. The right-hand thread direction and fully threaded configuration meet international metric fastener standards for interchangeability and performance reliability.