S-91306A732 M4 x 50 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 high-strength alloy steel, ensuring reliable performance under heavy loads and high-stress applications.
• Superior corrosion resistance from zinc plating, extending service life in harsh industrial environments and reducing maintenance costs.
• Precise and secure fastening with M4 coarse threads and Class 6g fit, providing easy installation and stable connections in various materials.
• Efficient installation and removal using a 2.5 mm hex drive, allowing for quick assembly with standard tools and minimizing downtime.
• Optimized head design with a rounded button profile, offering a low-profile finish that reduces snagging and improves safety in tight spaces.
• Full threading along the 50 mm length for maximum grip and uniform stress distribution, enhancing joint integrity in demanding setups.
• Compliance with international standards including ISO 7380, ensuring consistent quality and interoperability in global engineering projects.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this M4 metric screw combines zinc-plated alloy steel and a Class 10.9 strength grade to address common challenges like vibration loosening and material fatigue. The fully threaded coarse pitch design ensures rapid installation and robust holding power in metals, plastics, and composites, while the rounded head with hex drive facilitates access in confined spaces without compromising torque application. Ideal for machinery, automotive assemblies, and structural frameworks, it delivers long-term reliability by resisting corrosion and maintaining 140,000 psi tensile strength, reducing the need for frequent replacements and supporting efficient production workflows.

Specification Summary & Compliance

This fastener adheres to precise ISO 7380 dimensions, including a Class 6g thread fit for consistent engagement and a 50 mm length with full threading. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material sustainability. The Rockwell C32 hardness and standardized coarse thread pitch of 0.7 mm further guarantee durability and ease of use across industrial applications.