S-91251A292 12-24 x 7/16" ASTM A574 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 demanding industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies, minimizing loosening over time.
- Hex socket drive (5/32") allows for high-torque installation with standard tools, enabling efficient assembly and maintenance.
- Coarse 12-24 UNC threads facilitate quicker installation and better performance in materials where fine threads may strip.
- Full threading along the 7/16" length offers uniform grip and adjustability, suitable for a wide range of material thicknesses.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global supply chain integration.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in machinery, automotive, and heavy equipment applications. The Class 3A thread fit and coarse 12-24 UNC threads provide superior holding power and ease of assembly in soft or brittle materials, reducing installation time and maintenance costs. With a Rockwell C37 hardness and robust 170,000 psi tensile strength, it withstands dynamic loads and harsh conditions, ensuring long-term reliability. The fully threaded design and standard hex drive further enhance versatility and torque capability, making it ideal for precision engineering projects requiring consistent performance.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit for precise dimensional accuracy and UNC coarse thread standards. It is manufactured in compliance with ASTM A574 specifications for alloy steel socket head cap screws, ensuring material integrity and mechanical properties. The product is confirmed RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
