S-90854A327 M20 x 130 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 demanding applications
• Superior corrosion resistance through zinc yellow-chromate plating that extends service life in harsh environments
• Optimized fastening control with partial threading that provides better grip and reduces material stress
• High-strength Class 10.9 rating ensures consistent performance under heavy loads and vibration
• Precise metric coarse threading (M20x2.5) enables quick installation and secure fastening in industrial settings
• External hex drive design allows for easy installation with standard tools and high torque application
• Rockwell C32 hardness maintains structural integrity and prevents deformation under pressure

Professional Applications & Engineering Value

This Class 10.9 hex head screw delivers exceptional engineering value for heavy-duty industrial applications where failure is not an option. The M20 metric coarse thread with 2.5mm pitch provides superior holding power in structural steel connections, machinery assembly, and construction projects. The zinc yellow-chromate plating offers critical corrosion protection in environments exposed to moisture, chemicals, and outdoor elements, significantly extending maintenance intervals. With partial threading design, engineers benefit from optimized stress distribution, reducing the risk of material fatigue in critical joints. The external hex drive ensures compatibility with standard industrial tools while allowing high torque application for secure fastening in automotive, manufacturing, and infrastructure projects requiring ISO 4014/DIN 931 compliance.

Specification Summary & Compliance

This hex head screw features precise Class 6h thread fit tolerance ensuring consistent engagement and reliability. Manufactured to ISO 4014/DIN 931 standards, the fastener delivers guaranteed dimensional accuracy and performance characteristics. The 130mm length with 52mm minimum thread length provides optimal fastening capability for various material thicknesses. Compliant with international quality standards, this metric coarse thread fastener meets industrial requirements for heavy-duty applications where precision and reliability are paramount.