S-91239A762 M2.5 x 16 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability and load-bearing capacity with Class 10.9 strength grade and 140,000 psi tensile strength for reliable performance in high-stress assemblies.
• Superior corrosion resistance thanks to the black-oxide coating on alloy steel, extending service life in harsh industrial environments.
• Precise and secure fastening ensured by Class 6g thread fit and coarse threading, reducing the risk of cross-threading and ensuring consistent engagement.
• Efficient installation and removal with a 1.5 mm hex drive and rounded button head design, allowing for easy access and torque application in confined spaces.
• Full thread coverage along the 16 mm length provides maximum grip and uniform stress distribution, enhancing joint integrity.
• High hardness of Rockwell C32 minimizes wear and deformation under repeated use, maintaining fastener performance over time.
• Compliance with international standards including ISO 7380, RoHS 3, and REACH, ensuring safety, environmental responsibility, and global interoperability.

Professional Applications & Engineering Value

This M2.5 metric screw is engineered to address common industrial challenges such as vibration loosening, corrosion-induced failure, and assembly inefficiencies. The black-oxide alloy steel construction offers enhanced protection against rust and oxidation, making it ideal for applications in automotive, machinery, and electronics where exposure to moisture or chemicals is a concern. The fully threaded coarse pitch design and Class 6g thread fit ensure quick, reliable fastening with reduced installation time, while the rounded head with hex drive allows for flush mounting and easy tool access in tight spaces. By combining high tensile strength and Rockwell C32 hardness, this screw withstands dynamic loads and harsh conditions, providing long-term reliability in heavy-duty assemblies and reducing maintenance costs.

Specification Summary & Compliance

This fastener adheres to precise dimensional tolerances, including a Class 6g thread fit per metric standards and ISO 7380 specifications for rounded head screws. It is manufactured from alloy steel with a black-oxide surface treatment to enhance durability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures it meets stringent environmental and safety regulations, supporting sustainable and responsible sourcing for industrial applications.