S-91864A078 0-80 x 5/8" 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in critical assemblies.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, non-reflective finish suitable for industrial environments.
- Hex socket drive design allows for high torque application and easy installation in confined spaces, improving assembly efficiency.
- Fine UNF threads deliver better adjustment precision and holding power compared to coarse threads, ideal for precision equipment.
- Full threading along the 5/8" length ensures maximum grip and versatility across various material thicknesses.
- Compliance with RoHS 3 and REACH guarantees environmental safety and regulatory adherence for global supply chains.
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. The Class 3A UNF fine threads provide a tight, secure fit that maintains integrity in high-vibration environments like automotive or aerospace assemblies. With a Rockwell C37 hardness and robust 170,000 psi tensile strength, it withstands heavy loads without stripping or shearing. The hex drive facilitates quick installation with standard tools, reducing downtime in production lines. Ideal for precision applications in electronics, robotics, and heavy equipment, this screw ensures long-term reliability and performance consistency.
Specification Summary & Compliance
This socket head cap screw adheres to ASTM A574 specifications, with a Class 3A thread fit for precise dimensional accuracy in inch measurements. It features a right-hand, fine UNF thread (0-80 size) and is fully threaded for uniform engagement. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.
