S-92313A621 3/8"-16 x 5/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 Stainless Steel construction for reliable performance in harsh environments
• Precise Class 3A thread fit ensures secure fastening with minimal backlash in critical applications
• High durability with Rockwell B80 hardness rating for extended service life under mechanical stress
• Secure hex drive engagement with 3/16" drive size prevents stripping during installation and removal
• Effective cup tip design provides concentrated contact pressure for superior grip on shaft components
• Coarse UNC thread profile enables faster installation and reduced cross-threading risks
• Comprehensive compliance with ASME B18.3 standards ensures dimensional accuracy and interchangeability

Professional Applications & Engineering Value

This 316 Stainless Steel hex headless set screw delivers exceptional engineering value in demanding industrial environments where corrosion resistance and precise positioning are critical. The Class 3A thread fit provides tighter tolerances than standard fasteners, eliminating play in precision machinery, rotating assemblies, and alignment-sensitive equipment. The cup tip design concentrates force on a small contact area, creating superior resistance to rotational forces in pulley systems, gears, and collars. Manufactured from 316 Stainless Steel, this fastener maintains integrity in chemical processing, marine applications, and outdoor installations where moisture and corrosive agents degrade ordinary fasteners. The right-hand coarse UNC thread ensures rapid installation in production environments while the hex drive accommodates standard tools for maintenance accessibility.

Specification Summary & Compliance

This set screw features precise 3/8"-16 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. The fastener conforms to ASME B18.3 specifications for dimensional standards and manufacturing consistency. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety. With a Rockwell B80 hardness rating and 316 Stainless Steel composition, this set screw delivers reliable performance across industrial applications requiring corrosion resistance and mechanical durability.