S-90128A217 M4 x 25 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws
Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 PSI for reliable performance in high-stress applications
- Superior corrosion resistance with zinc-plated alloy steel, extending service life in harsh environments
- Precise torque transmission via 3mm hex drive, reducing tool slippage and assembly errors
- Optimized thread engagement with Class 5g6g fit and coarse 0.7mm pitch for faster installation
- High hardness rating of Rockwell C37 to resist wear and deformation under load
- Partially threaded design for secure clamping in materials requiring unthreaded shank sections
- Global compliance assurance with RoHS 3 and REACH standards for safe, sustainable use
Professional Applications & Engineering Value
These M4 socket head cap screws are engineered to address critical challenges in industrial assembly, where vibration resistance, high clamping force, and durability are paramount. The Class 12.9 alloy steel construction, combined with a zinc-plated finish, provides robust protection against corrosion and mechanical stress, making them ideal for machinery, automotive components, and precision equipment. The right-hand coarse thread (M4 x 0.7mm) ensures quick, secure fastening in metals and composites, while the partially threaded rod design prevents loosening in dynamic loads. By meeting DIN 912/ISO 4762 standards, these screws deliver consistent dimensional accuracy and reliability, reducing downtime and maintenance costs in demanding engineering environments.
Specification Summary & Compliance
This socket head cap screw features a 25mm length with a minimum thread length of 20mm, Class 5g6g thread fit for precise tolerance, and M4 coarse thread with 0.7mm pitch. Manufactured to DIN 912/ISO 4762 specifications, it ensures dimensional consistency and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible procurement and use in industrial applications.
