S-91280A937 M24 x 120 mm ISO 4014, DIN 931, SAE J1199, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced load-bearing capacity with Class 8.8 strength grade providing 110,000 psi tensile strength for demanding industrial applications
• Superior corrosion protection through zinc plating that extends service life in harsh environments
• Optimized thread engagement with M24 x 3mm coarse thread pitch ensuring faster assembly and reduced cross-threading risks
• Reliable torque transmission via external hex drive design that accommodates standard wrenching tools
• Precision thread compatibility with Class 6h thread fit maintaining consistent mating with nuts and threaded components
• Partial threading design allowing unthreaded shank sections for enhanced shear strength in structural connections
• Global compliance assurance meeting ISO 4014, DIN 931, and SAE J1199 standards for international project specifications

Professional Applications & Engineering Value

These M24 hex head screws deliver exceptional engineering value in heavy-duty applications where vibration resistance and structural integrity are paramount. The Class 8.8 steel construction provides reliable performance in construction equipment, machinery frames, and structural steel connections. The zinc plated finish offers crucial corrosion protection for outdoor installations and industrial environments with exposure to moisture. With metric coarse threading and partial threading design, these fasteners prevent loosening under dynamic loads while providing optimal clamp force distribution. The external hex drive ensures compatibility with standard torque tools, facilitating precise installation in confined spaces common in manufacturing and assembly operations.

Specification Summary & Compliance

This 120mm length hex head screw features M24 x 3mm coarse thread with Class 6h thread fit tolerance ensuring precise mating with corresponding nuts. Manufactured to ISO 4014, DIN 931, and SAE J1199 specifications, the fastener delivers consistent dimensional accuracy and mechanical properties. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial supply chains. With Rockwell C21 hardness and verified 110,000 psi tensile strength, this fastener meets rigorous quality standards for construction and manufacturing applications.