S-91318A714 5/8"-11 x 5/16" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Maximum holding power ensured by Class 3A thread fit for precise, secure fastening in demanding applications
• Exceptional durability with Rockwell B80 hardness, providing reliable performance under mechanical stress
• Easy installation and removal using a standard 5/16" hex drive, reducing assembly time and tool requirements
• Versatile coarse thread spacing (UNC) for quick engagement and strong resistance to vibration loosening
• Headless design allows for flush mounting in confined spaces without protruding components
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in global markets

Professional Applications & Engineering Value

This 5/8"-11 UNC Class 3A hex headless set screw is engineered to address critical challenges in industrial assembly, such as vibration-induced loosening and corrosion in aggressive settings. The 18-8 stainless steel material offers excellent resistance to rust and chemicals, extending service life in machinery, automotive, and marine applications. Its coarse thread spacing and right-hand thread direction enable rapid installation and high clamping force, while the hex drive style ensures torque accuracy without slippage. Ideal for securing components like gears, pulleys, and shafts, this fastener delivers consistent performance where precision and durability are paramount, reducing maintenance downtime and enhancing operational reliability.

Specification Summary & Compliance

This set screw adheres to UNC thread standards with a Class 3A thread fit for tight tolerances and superior thread engagement. Key dimensions include a 5/8"-11 thread size, 0.625" thread diameter, 5/16" length, and coarse thread spacing. Manufactured from 18-8 stainless steel with a Rockwell B80 hardness, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for industrial use.