S-91239A769 M2.5 x 25 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 alloy steel construction, providing reliable performance in demanding industrial environments
• Superior corrosion resistance thanks to the black-oxide surface treatment, extending service life in various operating conditions
• Optimal torque transmission through the hex drive design, ensuring secure installation and preventing tool slippage
• High tensile strength rating of 140,000 psi, delivering reliable fastening integrity for critical applications
• Enhanced hardness at Rockwell C32, maintaining thread integrity and resistance to wear over repeated use
• Easy installation and removal with fully threaded coarse pitch design, reducing assembly time in production environments
• Broad compatibility with Class 6g thread fit, ensuring proper engagement with standard metric components

Professional Applications & Engineering Value

This M2.5 metric screw with black-oxide alloy steel construction addresses critical engineering challenges in industrial fastening applications. The Class 10.9 strength rating combined with 140,000 psi tensile strength provides exceptional load-bearing capacity for machinery, equipment assembly, and structural components where vibration resistance is paramount. The fully threaded coarse pitch design (0.45mm) ensures rapid installation while maintaining holding power, significantly reducing assembly time in production lines. The hex drive configuration delivers superior torque transmission compared to Phillips or slotted drives, preventing cam-out and damage to the fastener head during high-torque applications. The rounded button head profile offers a low-profile finish that minimizes snagging hazards while providing adequate bearing surface for secure fastening in industrial applications ranging from automotive assemblies to electronic enclosures and mechanical systems.

Specification Summary & Compliance

This high-performance fastener maintains precise Class 6g thread fit tolerances according to ISO 7380 specifications, ensuring consistent performance and interchangeability. The metric thread with M2.5 diameter and 0.45mm coarse pitch provides optimal engagement characteristics for industrial applications. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making this screw suitable for global supply chains and environmentally conscious manufacturing operations. The combination of dimensional precision, material properties, and regulatory compliance ensures reliable performance across diverse industrial sectors.