S-90044A295 6-32 x 3 1/2" 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.
• Superior corrosion resistance from the black-oxide finish on alloy steel extends service life in harsh industrial environments.
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
• Partially threaded design allows for controlled clamping force and easier alignment in components requiring specific grip lengths.
• Hex socket drive (7/64") enables high-torque installation with standard tools, minimizing stripping and improving assembly efficiency.
• Compliance with ASTM A574 guarantees consistent quality and mechanical properties for demanding engineering uses.
• RoHS 3 and REACH compliance ensures environmental and safety standards are met, supporting sustainable procurement practices.

Professional Applications & Engineering Value

This 6-32 UNC socket head cap screw is engineered to address common industrial challenges such as vibration loosening and corrosion-induced degradation. The black-oxide alloy steel construction, combined with a coarse thread and right-hand direction, offers excellent grip and durability in machinery, automotive, and heavy equipment assemblies. Its partially threaded rod type allows for precise engagement in tapped holes or nuts, reducing stress concentration and improving load distribution. The standard socket head profile with a hex drive facilitates easy access in confined spaces, making it ideal for maintenance and production lines where reliability and ease of installation are critical. These features collectively enhance operational uptime and reduce long-term maintenance costs.

Specification Summary & Compliance

This screw adheres to Class 3A thread fit for superior precision and meets ASTM A574 specifications for socket head cap screws. It features a UNC coarse thread with a 3-1/2" length and minimum thread length of 3/4", ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global industrial use.