S-92311A398 5/8"-18 x 1" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant fastening in critical applications
• Optimized torque transmission through 5/16" hex drive design for secure installation without slippage
• Enhanced material strength with Rockwell B80 hardness providing durability under mechanical stress
• Secure component positioning with cup tip design that minimizes surface damage during clamping
• Industry-standard compliance meeting ASME B18.3 specifications for guaranteed dimensional accuracy
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 18-8 stainless steel set screw delivers exceptional engineering value for industrial applications requiring precision fastening solutions. The Class 3A thread fit provides superior engagement with mating components, eliminating play in high-vibration environments while the fine UNF thread offers enhanced clamping force distribution. The headless design with 5/16" hex drive enables flush mounting in confined spaces, while the cup tip creates positive seating without damaging shaft surfaces. Particularly valuable in machinery, automotive, and manufacturing applications, this corrosion-resistant fastener maintains integrity in demanding conditions where reliability is paramount.

Specification Summary & Compliance

This set screw features Class 3A thread fit with 5/8"-18 UNF fine threads and maintains dimensional compliance with ASME B18.3 specifications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. With a standardized 1" length and 0.625" thread diameter, this fastener delivers consistent performance in precision assembly applications.