S-90854A279 M16 x 45 mm ISO 4017, DIN 933 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 demanding applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
• High-strength Class 10.9 rating ensures consistent performance under heavy mechanical stress and vibration
• Precision Class 6h thread fit guarantees secure fastening and prevents loosening in critical assemblies
• Full threading design enables maximum grip length and uniform stress distribution across the entire fastener
• External hex drive configuration allows for high-torque installation with standard tools
• Rockwell C32 hardness maintains thread integrity and prevents stripping during repeated use

Professional Applications & Engineering Value

These M16 hex head screws deliver exceptional engineering value in heavy-duty industrial applications where reliability is paramount. The Class 10.9 steel construction combined with 150,000 psi tensile strength makes them ideal for structural assemblies, machinery frames, and equipment requiring sustained load capacity. The zinc yellow-chromate plating provides critical corrosion protection in manufacturing environments exposed to moisture, chemicals, or outdoor conditions. With coarse thread spacing and Class 6h thread fit, these fasteners ensure rapid installation while maintaining precise tolerances. The fully threaded design distributes clamping force evenly, preventing stress concentration points that can lead to joint failure in vibration-prone applications such as automotive components, construction equipment, and industrial machinery.

Specification Summary & Compliance

This metric hex head screw features M16x2mm coarse thread spacing with Class 6h thread fit tolerance and right-hand threading. Manufactured to ISO 4017/DIN 933 specifications with a length of 45mm and external hex drive configuration. The fastener meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and chemical safety in industrial applications.