S-90344A111 10-32 x 1/2" ASME B18.3, ASTM A574 Socket Head Screws with Flat Washer

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in dynamic environments.
• Integrated flat washer distributes load evenly, preventing surface damage and enhancing joint integrity under heavy loads.
• Black-oxide finish on alloy steel offers corrosion resistance and a durable, non-reflective surface suitable for harsh conditions.
• Rockwell C39 hardness delivers excellent wear resistance, extending the screw's service life in repetitive assembly operations.
• Fully threaded design allows for consistent clamping force along the entire length, ideal for adjustable or deep-set applications.
• Compliance with ASME B18.3 and environmental standards ensures quality, safety, and eco-friendly use in regulated industries.

Professional Applications & Engineering Value

This 10-32 UNF socket head cap screw is engineered to address common industrial challenges, such as vibration-induced loosening and surface damage under load. Made from black-oxide alloy steel, it combines high Rockwell C39 hardness and 170,000 psi tensile strength to withstand extreme forces in machinery, automotive, and aerospace assemblies. The fine UNF threads and Class 3A fit provide tight tolerances for precise alignment, while the integrated flat washer eliminates the need for separate components, streamlining installation and improving load distribution. Ideal for applications requiring right-hand threaded, fully threaded fasteners with consistent performance, this screw ensures durability and reliability in demanding environments, from heavy equipment to precision instruments.

Specification Summary & Compliance

This product features a 10-32 UNF thread size with Class 3A thread fit for high precision, adhering to ASME B18.3 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for environmental safety, with dimensions in the inch system including a 1/2" length and 5/32" hex drive. The black-oxide steel washer complements the alloy steel construction, ensuring consistent performance in industrial fastening applications.