S-91352A126 M4 x 25 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Class 10.9 rating and 140,000 PSI tensile strength, ensuring reliable performance under high stress.
• Superior corrosion resistance and visual identification from the blue-dyed zinc plating, enhancing durability and aiding in assembly organization.
• Secure and efficient installation with a 2.5 mm hex socket drive, providing a positive grip that resists cam-out and allows for high torque application.
• Optimized thread engagement and fast assembly thanks to the coarse 0.7 mm pitch and Class 6g fit, reducing the risk of cross-threading.
• Low-profile, rounded button head design minimizes protrusion for a clean finish and reduces the risk of snagging in compact spaces.
• Full threading along the 25 mm length offers maximum grip and adjustability in a wide range of material thicknesses.
• Guaranteed material integrity with a Rockwell C32 hardness, providing excellent wear resistance and preventing thread deformation.

Professional Applications & Engineering Value

This M4 metric hex socket button head screw is engineered to solve critical fastening challenges in industrial and mechanical assemblies. The blue-dyed zinc-plated alloy steel construction provides a robust barrier against corrosion, extending service life in harsh environments while allowing for easy part identification. The coarse 0.7 mm pitch thread and Class 6g fit ensure rapid, reliable installation with reduced risk of stripping, making it ideal for high-volume production lines. The low-profile button head and fully threaded design offer versatile clamping force in applications from machinery and automotive sub-assemblies to electronic enclosures, where a flush finish and high tensile strength are paramount. Its compliance with major international standards ensures consistent quality and performance for global engineering projects.

Specification Summary & Compliance

This fastener features a Metric M4 x 0.7 mm coarse thread with a Class 6g tolerance for precise fit. The manufacturing and dimensional specifications conform to ISO 7380. The screw is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated markets.