S-91318A410 1/4"-20 x 1/8" 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 holding power through Class 3A thread fit ensuring tight, secure fastening in demanding applications
• Optimized torque transmission with 1/8" hex drive providing reliable installation without head interference
• Enhanced durability with Rockwell B80 hardness maintaining structural integrity under repeated use
• Quick installation through coarse UNC thread spacing reducing assembly time in production environments
• Reliable right-hand threading for standard industrial applications and easy maintenance
• Regulatory compliance with RoHS 3 and REACH standards ensuring environmental and safety requirements are met

Professional Applications & Engineering Value

This 1/4"-20 UNC hex headless set screw delivers critical engineering solutions where space constraints and corrosion resistance are paramount. The 18-8 Stainless Steel construction provides excellent resistance to oxidation and chemical exposure, making it ideal for machinery, automotive components, and electronic enclosures operating in demanding environments. The Class 3A thread fit ensures precise engagement with mating parts, eliminating play and vibration-induced loosening in precision assemblies. The headless design with hex drive allows for flush mounting in confined spaces while maintaining high torque capability. These set screws are particularly valuable in applications requiring repeated adjustments or disassembly, where corrosion resistance and thread integrity must be maintained throughout the product lifecycle.

Specification Summary & Compliance

This precision fastener features 1/4"-20 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and engagement. Manufactured from 18-8 Stainless Steel with Rockwell B80 hardness, it maintains consistent performance across industrial applications. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various manufacturing sectors. The right-hand thread direction and 1/8" length provide standardized installation compatible with common industrial practices and tooling.