S-92695A839 5/8"-18 x 1 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with 90° cone point design that bites securely into materials, preventing slippage in high-vibration applications
• Superior corrosion resistance through black-oxide coating on alloy steel, extending service life in demanding industrial environments
• Precision thread engagement with Class 3A fit ensuring tight tolerances and reliable performance in critical assemblies
• High-strength durability from Rockwell C45 hardened alloy steel, maintaining integrity under heavy mechanical stress
• Easy installation and removal with 5/16" hex drive design, allowing efficient maintenance with standard tools
• Space-saving headless configuration ideal for applications where flush mounting and compact design are essential
• Reliable fine thread performance with 5/8"-18 UNF specification providing superior resistance to loosening compared to coarse threads

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional engineering value in industrial settings where vibration resistance and permanent positioning are critical. The 90° cone point creates concentrated pressure points that securely lock components onto shafts, preventing rotational movement in machinery, power transmission systems, and precision equipment. The UNF fine thread spacing combined with Class 3A thread fit ensures superior clamping force distribution and resistance to vibrational loosening, making it ideal for automotive assemblies, industrial machinery, and manufacturing equipment. The headless design with hex drive allows for flush installation in confined spaces while maintaining accessibility for maintenance. With Rockwell C45 hardness, this fastener withstands repeated adjustments without thread deformation, providing long-term reliability in heavy-duty applications.

Specification Summary & Compliance

This set screw features precision 5/8"-18 UNF threads with Class 3A fit, ensuring tight dimensional accuracy and superior thread engagement. Manufactured to ASME B18.3 specifications with consistent quality control. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. The black-oxide surface treatment on alloy steel provides enhanced corrosion protection while maintaining dimensional stability. All specifications meet or exceed industry standards for high-performance industrial fastening applications.