S-91239A754 M2.5 x 5 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength grade and 140,000 psi tensile strength for reliable performance in demanding applications.
• Superior corrosion resistance from the black-oxide coating on alloy steel, extending service life in harsh industrial environments.
• Easy installation and high torque capability with a 1.5 mm hex drive and rounded button head design, reducing tool slippage and assembly time.
• Secure fastening in coarse materials due to the fully threaded coarse 0.45 mm pitch and Class 6g fit, minimizing loosening under vibration.
• Consistent dimensional accuracy per ISO 7380 standards, ensuring interchangeability and reducing the risk of mismatches in precision assemblies.
• Compliance with environmental regulations including RoHS 3 and REACH, making them safe for use in regulated industries worldwide.
• High hardness (Rockwell C32) provides excellent wear resistance, maintaining thread integrity over repeated use.

Professional Applications & Engineering Value

These M2.5 metric screws with a black-oxide alloy steel construction address critical engineering challenges in heavy-duty and high-vibration environments. The fully threaded design with coarse 0.45 mm pitch ensures rapid installation and strong grip in softer materials or where quick assembly is essential, such as in automotive components, machinery, and electronic enclosures. The rounded head style and hex drive offer a low-profile, flush finish that prevents snagging while allowing high torque application without stripping. Ideal for industrial applications requiring high strength and corrosion resistance, these fasteners reduce maintenance needs and enhance product longevity, supported by their compliance with ISO 7380 for consistent quality and performance.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 6g thread fit for metric coarse threads and a length of 5 mm, ensuring reliable engagement. Manufactured to meet ISO 7380 specifications, it guarantees uniformity and performance in industrial settings. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms the absence of hazardous substances, making it suitable for global supply chains. The Class 10.9 strength grade and Rockwell C32 hardness further validate its suitability for high-stress applications, providing assurance of durability and safety.