S-91375A771 8-32 x 1/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Maximum holding power with Class 3A thread fit ensuring tight, secure connections in demanding applications
• Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
• Exceptional durability from Rockwell C45 hardness alloy steel, resisting wear and deformation under high stress
• Easy installation and removal with 5/64" hex drive design, providing reliable torque transmission without stripping
• Secure fastening with cup tip design that bites into surfaces, preventing component slippage and movement
• Wide compatibility with 8-32 UNC coarse threads, offering quick assembly and reliable performance in various materials
• Headless construction allowing flush mounting in confined spaces where protruding fasteners are impractical

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers critical engineering solutions for industrial assembly challenges. The zinc plated alloy steel construction provides excellent corrosion protection while maintaining Rockwell C45 hardness for repeated use without degradation. The hex drive design ensures maximum torque application without cam-out, while the cup tip creates positive mechanical locking against shaft surfaces. These headless set screws are ideal for precision machinery, motor assemblies, and gear systems where space constraints demand flush-mounted fasteners. The coarse UNC threads offer rapid installation and superior resistance to vibration loosening in production environments.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision dimensional accuracy. Features 8-32 UNC coarse threads with right-hand direction and 1/4" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use worldwide.