S-91280A739 M12 x 100 mm ISO 4014, DIN 931, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance under high-stress conditions, minimizing failure risks in demanding applications.
• Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh or outdoor environments.
• Precision Class 6h thread fit guarantees consistent engagement and reduces the likelihood of cross-threading during assembly.
• Robust Class 8.8 strength grade with Rockwell C21 hardness provides excellent durability and resistance to wear and deformation.
• Coarse thread design (M12 x 1.75mm) enables faster installation and secure fastening in a variety of materials, improving efficiency.
• Partially threaded shank with 30mm minimum thread length offers optimal grip and clamping force where full threading isn't required, enhancing versatility.
• External hex drive and standard hex head allow for easy installation with common tools, speeding up assembly and maintenance processes.

Professional Applications & Engineering Value

Engineered for industrial and construction settings, this M12 hex head screw addresses critical needs for reliability and longevity. The Class 8.8 steel construction, combined with a zinc-plated finish, resists environmental degradation, making it ideal for machinery, structural frameworks, and outdoor equipment. Its coarse metric thread ensures quick, secure fastening in metals and composites, reducing assembly time while maintaining high tensile strength. The partially threaded design minimizes material stress by concentrating clamping force, a key advantage in dynamic load applications. Compliance with ISO 4014 and DIN 931 standards guarantees consistent quality, supporting seamless integration into global supply chains and reducing downtime from fastener failures.

Specification Summary & Compliance

This fastener adheres to precise dimensional tolerances, including a Class 6h thread fit per metric standards and a minimum thread length of 30 mm. It meets ISO 4014, DIN 931, and ISO 898 specifications for mechanical properties, ensuring reliable performance in industrial use. Additionally, the product is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, confirming its safety and environmental responsibility for various markets.