S-91239A234 M5 x 25 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with Class 10.9 rating and 140,000 psi tensile strength, ensuring reliable performance in high-stress industrial applications.
• Superior corrosion resistance provided by the black-oxide coating on alloy steel, extending service life in harsh environments.
• Precise and secure fastening with M5 coarse thread (0.8 mm pitch) and Class 6g fit, offering excellent grip and vibration resistance.
• Easy installation and removal using a standard 3 mm hex drive, reducing assembly time and tooling requirements.
• Optimized for space-constrained applications with a low-profile rounded button head design (9.5 mm diameter, 2.75 mm height).
• Full thread engagement along the 25 mm length, providing consistent clamping force and stability.
• Compliance with international standards including ISO 7380, RoHS 3, and REACH, ensuring quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

This M5 x 0.8 mm Class 10.9 black-oxide alloy steel hex screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and corrosion-induced failure. The fully threaded coarse metric thread ensures rapid installation and robust holding power in materials like metals and plastics, while the rounded button head minimizes protrusion in compact machinery and electronic enclosures. With a Rockwell C32 hardness and high tensile strength, it withstands dynamic loads in automotive, aerospace, and heavy equipment applications. The black-oxide surface treatment enhances corrosion resistance without sacrificing dimensional accuracy, making it ideal for outdoor or humid conditions. By integrating ISO 7380 specifications, this screw delivers consistent performance, reducing maintenance costs and downtime in precision engineering projects.

Specification Summary & Compliance

This fastener adheres to ISO 7380 for dimensional consistency, featuring an M5 thread size with 0.8 mm coarse pitch and Class 6g thread fit for precise tolerance. The 25 mm length and fully threaded design ensure uniform stress distribution. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the absence of hazardous substances. Manufactured from alloy steel with a Class 10.9 strength grade, it meets rigorous mechanical demands for industrial use.