S-91290A137 M3 x 50 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 ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide finish on alloy steel prolongs service life in harsh industrial environments.
- High hardness rating of Rockwell C37 provides excellent wear resistance and durability under repetitive loads.
- Precision Class 5g6g thread fit guarantees smooth assembly and secure fastening, minimizing loosening in vibrating machinery.
- Partially threaded design allows for controlled clamping force and easier alignment in assemblies.
- Compliance with DIN 912/ISO 4762 standards ensures dimensional accuracy and interchangeability for global engineering projects.
- RoHS 3 and REACH compliance meets environmental regulations, making it safe for use in regulated industries.
Professional Applications & Engineering Value
This M3 socket head cap screw is engineered from black-oxide alloy steel to address common industrial challenges such as corrosion and mechanical stress. The metric thread with a coarse pitch of 0.5mm enables quick installation and high resistance to vibration loosening, ideal for heavy-duty machinery, automotive assemblies, and precision equipment. With a Class 12.9 strength rating and hex drive design, it provides reliable torque transmission and access in confined spaces, reducing assembly time and maintenance costs. The combination of high tensile strength and standardized dimensions per DIN 912/ISO 4762 ensures consistent performance in critical applications, enhancing overall system reliability.
Specification Summary & Compliance
This screw features a Class 5g6g thread fit for precise tolerance, with a thread size of M3 x 0.5mm and a length of 50mm. It adheres to DIN 912 and ISO 4762 standards for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
