S-91688A258 5/8"-11 x 1" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Enhanced holding power through permanent swivel tip design that prevents component damage while maintaining secure positioning
• High-strength durability with Rockwell C54 hardness rating ensuring reliable performance under heavy loads
• Precise thread engagement with Class 2A fit providing consistent, reliable fastening in industrial applications
• Easy installation and removal with 5/16" hex drive configuration for straightforward tool access in confined spaces
• Optimized for heavy-duty applications featuring coarse UNC thread spacing for rapid assembly and superior vibration resistance
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

This heavy-duty 5/8"-11 UNC set screw delivers exceptional engineering value through its 18-8 stainless steel construction and permanent swivel tip design. The combination of Rockwell C54 hardness and Class 2A thread fit ensures reliable performance in demanding industrial applications where vibration resistance and precise component positioning are critical. The hex headless configuration with 5/16" drive allows for installation in confined spaces while maintaining high torque capability. The permanent 304 stainless steel tip with 9° maximum swivel angle prevents damage to shaft surfaces while providing superior gripping power, making it ideal for machinery, automotive, and manufacturing equipment where repeated adjustments are necessary without compromising fastener integrity.

Specification Summary & Compliance

This set screw maintains precise Class 2A thread fit according to UNC standards with 5/8"-11 coarse thread spacing and right-hand thread direction. The fastener features 1" length and 0.625" thread diameter with 0.372" tip diameter. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and chemical safety standards are met for industrial applications worldwide.