S-90696A229 1/2"-20 x 3 1/4" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Superior thread engagement and vibration resistance from Class 3A UNF fine threads ensuring reliable, secure fastening
• High tensile strength of 70,000 psi provides dependable performance under heavy loads and stress
• Rockwell B70 hardness offers excellent durability and wear resistance for long service life
• Hex socket drive design allows for high torque application and easy installation in confined spaces
• Partial threading enables precise positioning and secure clamping in assembly applications
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for quality assurance

Professional Applications & Engineering Value

This Socket Head Cap Screw in 18-8 Stainless Steel delivers critical performance advantages for demanding industrial applications. The Class 3A thread fit with UNF fine threading provides superior vibration resistance and precise alignment in machinery, automotive, and aerospace assemblies. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in high-stress environments while resisting corrosion. The hex socket drive facilitates installation in tight spaces, making it ideal for precision equipment, manufacturing fixtures, and heavy-duty machinery where access is limited but high clamping force is essential.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit for precision UNF fine threading. The screw features a 1/2"-20 thread size with 3/4" head diameter and 3 1/4" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.