S-91294A138 M3 x 25 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 tensile strength (120,000 psi) for reliable performance in high-stress industrial environments.
• Enhanced corrosion resistance from the black-oxide coating, extending service life in humid or demanding conditions.
• Precise thread engagement with 6g thread fit and coarse M3 x 0.5mm pitch, ensuring quick assembly and reduced cross-threading risks.
• Optimized flush mounting due to the standard 90° countersink angle and flat head design, ideal for applications requiring a smooth surface finish.
• Superior durability backed by Rockwell C32 hardness and alloy steel construction, resisting wear and deformation under repeated use.
• Efficient installation with a 2 mm hex drive, allowing for high-torque application without slippage in confined spaces.
• Full-threaded design providing consistent grip along the entire 25mm length, enhancing holding power in various materials.

Professional Applications & Engineering Value

This M3 flat head screw is engineered to address critical fastening challenges in industrial settings, such as machinery assembly, automotive components, and electronic enclosures. The black-oxide alloy steel material combats rust and oxidation, making it suitable for environments exposed to moisture or chemicals. With a Class 10.9 strength grade and fully threaded metric design, it delivers robust clamping force to prevent joint failure under vibration or dynamic loads. The coarse thread and 6g thread fit facilitate rapid installation in metals or plastics, reducing assembly time while maintaining precision. Compliant with DIN 7991/ISO 10642 standards, it ensures interoperability and reliability in global supply chains, offering a trusted solution for engineers seeking longevity and performance in high-tensile applications.

Specification Summary & Compliance

This fastener adheres to precise dimensional tolerances, including a Class 6g thread fit per metric standards and a 90° countersink angle for seamless integration. Manufactured in accordance with DIN 7991 and ISO 10642 specifications, it guarantees consistency and quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various industrial sectors.