S-91290A183 M4 x 90 mm DIN 912 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 through repeated assembly and disassembly.
- Precise Class 5g6g thread fit guarantees smooth installation and secure fastening, improving assembly efficiency and joint reliability.
- Compact 3mm hex drive and standard socket head allows for easy access in confined spaces and high-torque application with standard tools.
- Partially threaded design offers optimal grip length control, preventing over-tightening and ensuring consistent clamping force.
- Compliance with DIN 912, RoHS 3, and REACH ensures regulatory adherence for global industrial use, facilitating supply chain integration.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Class 12.9 socket head cap screws address critical challenges in machinery assembly, automotive components, and heavy equipment. The black-oxide alloy steel construction combats rust and oxidation in humid or chemically aggressive environments, while the coarse 0.7mm pitch metric thread ensures rapid installation and vibration resistance. With a partially threaded shank, the screw provides unthreaded bearing surface for enhanced shear strength, making it ideal for precision fixtures and structural frames where high tensile strength and dimensional accuracy under DIN 912 are paramount for safety and longevity.
Specification Summary & Compliance
This M4 x 0.7mm x 90mm screw features a Class 5g6g thread fit per ISO metric standards, ensuring dimensional precision. Manufactured to DIN 912 specifications for socket head cap screws, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of restricted hazardous substances. The Class 12.9 strength rating aligns with high-performance requirements, backed by rigorous testing for industrial use.
