S-91280A306 M12 x 60 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 8.8 rating (110,000 psi) ensures reliable performance in demanding applications
• Enhanced durability from Rockwell C21 hardness steel construction resists wear and deformation
• Secure fastening with coarse 1.75mm pitch threads providing superior grip in various materials
• Easy installation and removal with standard 19mm external hex head design
• Optimized load distribution through partial threading design minimizing stress concentration
• Environmental compliance with RoHS 3 and REACH regulations for safe industrial use
• Precision manufacturing to ISO 4014 standards ensures consistent quality and interchangeability

Professional Applications & Engineering Value

These M12 hex head screws deliver critical engineering solutions where high tensile strength and reliable fastening are paramount. The Class 8.8 steel construction with Rockwell C21 hardness provides exceptional resistance to vibration loosening and mechanical stress, making them ideal for heavy-duty industrial applications including machinery assembly, structural frameworks, and equipment manufacturing. The coarse thread pitch (1.75mm) ensures rapid installation and superior holding power in both soft and hard materials, while the partial threading design optimizes clamp load distribution. The black steel finish offers basic corrosion resistance, and compliance with ISO 4014 (equivalent to DIN 931) guarantees dimensional accuracy and international compatibility for global supply chains.

Specification Summary & Compliance

This metric hex head screw features M12 x 1.75mm coarse threads with Class 6g tolerance for precision fit. The 60mm length provides 30mm minimum thread engagement, manufactured to ISO 4014 specifications (DIN 931 equivalent). The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental safety standards are maintained. The external hex drive and right-hand threading conform to international industrial standards for seamless integration into existing assembly processes.