S-92695A734 6-40 x 3/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Maximum holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications
• Superior corrosion resistance from black-oxide coating on alloy steel, extending service life in industrial environments
• Precise positioning capability with 90° cone point design that bites into materials for permanent component alignment
• Exceptional durability with Rockwell C45 hardness rating, maintaining thread integrity under repeated use
• Space-saving installation through headless design, ideal for confined spaces and flush-mount applications
• Reliable torque transmission via 1/16" hex drive, preventing tool slippage during installation
• Industry-standard compatibility with UNF fine thread spacing for precise engagement in machinery and equipment

Professional Applications & Engineering Value

This 6-40 UNF set screw delivers critical engineering solutions for industrial applications requiring permanent component positioning. The black-oxide alloy steel construction provides enhanced corrosion resistance while maintaining the Rockwell C45 hardness necessary for repeated adjustments without thread deformation. The 90° cone point design creates positive mechanical locking by embedding into mating surfaces, preventing shaft slippage in pulleys, gears, and collars. With Class 3A thread fit precision and UNF fine threading, this fastener ensures zero backlash in precision machinery, automotive assemblies, and electronic enclosures where vibration resistance is paramount. The headless configuration allows flush mounting in space-constrained designs while the hex drive provides reliable torque application during installation.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit tolerances for superior dimensional accuracy. The UNF thread form with fine spacing (6-40) ensures precise engagement in engineering applications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for industrial fastener safety and sustainability. Thread diameter: 0.138", length: 3/8", with right-hand thread direction and cone point configuration.