S-91251A052 0-80 x 1/8" ASTM A574 Alloy Steel Socket Head Screws

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.
• Class 3A fine thread fit provides superior precision and vibration resistance, ideal for applications requiring tight tolerances and secure fastening.
• Black-oxide coating on alloy steel enhances corrosion resistance and durability, extending service life in harsh industrial environments.
• Fully threaded design allows for maximum grip and uniform load distribution, improving joint integrity across the entire length.
• Hex socket drive enables easy installation with standard tools, minimizing stripping and ensuring efficient assembly in confined spaces.
• Compliance with ASTM A574 guarantees consistent quality and mechanical properties, meeting rigorous industry standards for socket head cap screws.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence, making it suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

This 0-80 UNF socket head cap screw is engineered to address critical challenges in precision assemblies, such as machinery, aerospace components, and electronic enclosures. The black-oxide alloy steel construction provides excellent resistance to wear and environmental factors, while the fine UNF threads and Class 3A fit deliver secure, vibration-resistant connections that prevent loosening in dynamic operations. With a Rockwell C37 hardness and high tensile strength, it withstands heavy loads and repetitive stress, reducing maintenance needs and downtime. The fully threaded design ensures consistent clamping force, making it a reliable choice for applications demanding exact alignment and durability, from automotive systems to industrial equipment.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNF fine threads with a 0-80 size. It conforms to ASTM A574 specifications for material and mechanical properties, ensuring high-quality performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable use in various industries.