S-91290A476 M8 x 140 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 extends service life in harsh industrial environments.
- High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity over repeated use.
- Partially threaded design with a minimum 28mm thread length allows for precise clamping force and secure fastening in varied material thicknesses.
- Standard hex drive (6mm) enables easy installation and removal with common tools, minimizing assembly time.
- Class 12.9 strength rating guarantees consistent performance for critical applications requiring high load-bearing capacity.
- Compliance with international standards including DIN 912/ISO 4762 ensures dimensional accuracy and interchangeability.
Professional Applications & Engineering Value
This M8 socket head cap screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. The black-oxide alloy steel construction offers enhanced durability against environmental factors, while the coarse thread (1.25mm pitch) facilitates quick assembly in soft materials or where rapid disassembly is needed. Its partially threaded shank provides optimal grip in dynamic loads, making it ideal for machinery, automotive assemblies, and heavy-duty equipment. The Class 5g6g thread fit ensures precise engagement, reducing the risk of cross-threading and improving overall joint integrity in high-strength applications.
Specification Summary & Compliance
This screw adheres to DIN 912 / ISO 4762 standards for dimensional accuracy, with a Class 5g6g thread fit ensuring proper tolerance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industries without hazardous substances.
