S-92695A758 1/4"-20 x 2 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating for extended service life in harsh industrial environments
• Maximum holding power achieved through Class 3A thread fit ensuring precise, vibration-resistant fastening
• Enhanced material strength with Rockwell C45 hardness providing excellent durability under heavy loads
• Deep penetration grip from 90° cone point design that securely bites into mating surfaces
• Space-saving installation with headless construction ideal for confined spaces and flush mounting applications
• Reliable torque transmission through 1/8" hex drive that prevents tool slippage during installation
• Industry-standard compatibility with UNC coarse threads ensuring easy replacement and interchangeability

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional performance in demanding industrial applications where vibration resistance and permanent positioning are critical. The Class 3A thread fit provides tighter tolerances than standard fasteners, eliminating play in precision assemblies while the 90° cone point creates permanent seating in shafts, collars, and pulleys. Manufactured from alloy steel with Rockwell C45 hardness, this 2-1/2" set screw maintains its mechanical properties under continuous stress, making it ideal for heavy machinery, automotive systems, and power transmission equipment. The UNC coarse thread configuration ensures quick installation and superior resistance to loosening in high-vibration environments.

Specification Summary & Compliance

This 1/4"-20 set screw features precision Class 3A thread fit with UNC coarse thread spacing, manufactured to ASME B18.3 specifications. The product maintains dimensional accuracy per inch system requirements with 2-1/2" length and 0.25" thread diameter. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets. The right-hand thread direction and hex drive design adhere to industry standards for consistent performance in industrial fastening applications.