S-90447A290 M10 x 85 mm 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 demanding industrial applications
• Superior fatigue resistance thanks to Class 10.9 strength grade and Rockwell C32 hardness
• Reliable thread engagement with Class 6g thread fit ensuring precise mating with nuts
• Optimized weight distribution through partial threading design for balanced fastening performance
• Quick installation and removal with standard 17mm external hex drive head
• Enhanced corrosion protection from black surface treatment extending service life
• Global compliance assurance meeting DIN 931 specifications and environmental regulations

Professional Applications & Engineering Value

This M10 hex head screw delivers critical performance advantages in heavy machinery, structural steel connections, and automotive assemblies where vibration resistance and high tensile strength are paramount. The Class 10.9 steel construction maintains integrity under extreme loads, while the coarse 1.5mm pitch thread provides superior grip in both metallic and composite materials. The partially threaded design concentrates stress away from the head-shank junction, preventing common failure points in dynamic loading scenarios. Engineers specify these DIN 931 compliant fasteners for applications requiring predictable clamp load maintenance and repeated disassembly capability.

Specification Summary & Compliance

Manufactured to DIN 931 standards with Class 6g thread tolerance for consistent mating performance. The 85mm length with 26mm minimum thread length provides optimal engagement depth. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives ensures global regulatory acceptance. Metric coarse threading (M10 x 1.5mm) with right-hand direction follows international fastener conventions for interchangeability.