S-91290A478 M8 x 150 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 coating extends service life in harsh industrial environments, minimizing maintenance needs.
- High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity over repeated use.
- Precise Class 5g6g thread fit guarantees smooth assembly and secure fastening, improving installation efficiency.
- Partially threaded design offers optimal grip and clamping force where needed, enhancing joint stability.
- Standard hex socket drive allows for easy installation with common tools, reducing assembly time and effort.
- Compliance with DIN 912/ISO 4762 ensures interchangeability and reliability in global engineering projects.
Professional Applications & Engineering Value
This M8 socket head cap screw is engineered to address critical challenges in heavy-duty machinery, automotive systems, and precision equipment. The Class 12.9 alloy steel construction delivers unmatched strength-to-weight ratio, preventing elongation under load and ensuring long-term joint integrity. Its coarse thread (1.25mm pitch) facilitates quick assembly in materials prone to stripping, while the black-oxide surface treatment provides a durable barrier against oxidation and chemical exposure. The partially threaded shank concentrates clamping force precisely where needed, eliminating stress concentration points. These features make it ideal for applications requiring reliable high-strength fastening with consistent performance in demanding environments.
Specification Summary & Compliance
This metric fastener features M8 x 1.25mm coarse right-hand threads with Class 5g6g tolerance per ISO standards, ensuring precise fit. The 28mm minimum thread length and 150mm overall length provide versatile engagement options. Manufactured to DIN 912/ISO 4762 specifications with Rockwell C37 hardness verification. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use.
