S-92125A373 M4 x 55 mm DIN 7991, ISO 10642 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• High tensile strength of 70,000 psi provides dependable, secure fastening for demanding industrial applications.
• Precision Class 6g thread fit and coarse M4 x 0.7 mm threading ensures easy installation and excellent grip in various materials.
• 2.5 mm hex drive and 90° countersink angle allow for flush, tamper-resistant installation with standard tools.
• Partial threading and 14 mm minimum thread length offer optimal clamping force and vibration resistance.
• Compliance with DIN 7991/ISO 10642 standards guarantees dimensional accuracy and interchangeability.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This M4 flat head screw is engineered to solve critical fastening challenges in machinery, electronics, and structural assemblies. The 18-8 stainless steel material combined with a passivated finish resists oxidation and chemical exposure, making it ideal for outdoor, marine, or chemically aggressive settings. Its coarse metric thread (M4 x 0.7 mm) and Class 6g tolerance provide rapid installation and reduced cross-threading risks, while the partial threading design concentrates clamping force precisely where needed. The flat head with 90° countersink ensures a smooth, flush finish, preventing snagging and enhancing safety in automated equipment and consumer products. These features deliver reliable performance, reduced maintenance, and extended service life in industrial applications requiring robust, corrosion-resistant metric fasteners.

Specification Summary & Compliance

This screw adheres to DIN 7991 / ISO 10642 specifications, ensuring precise dimensions including M4 thread size, 0.7 mm pitch, and 55 mm length. Threading conforms to Class 6g fit for consistent engagement, with a right-hand, coarse thread pattern. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety regulations for industrial use.