S-90778A183 8-32 x 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction for long-lasting performance in harsh environments
• Maximum holding power achieved through Class 3A thread fit ensuring tight, secure fastening in demanding applications
• Enhanced grip and anti-loosening with 90° cone point design that bites into materials for superior vibration resistance
• High-strength durability with Rockwell B80 hardness providing excellent mechanical strength and wear resistance
• Easy installation and removal using standard 5/64" hex drive tools for efficient maintenance and assembly
• Reliable industrial compliance meeting ASME B18.3 specifications for consistent quality and dimensional accuracy
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers exceptional engineering value through its 316 Stainless Steel composition and precision Class 3A thread fit. The hex headless design with cone point configuration solves critical industrial challenges by providing secure positioning in pulleys, gears, and collars where vibration resistance is paramount. The coarse UNC thread ensures rapid installation while maintaining holding strength, making it ideal for machinery, automotive, and marine applications where corrosion resistance and reliability are non-negotiable. The 90° cone point angle creates concentrated pressure points that prevent slippage in high-torque environments, while the right-hand thread direction follows standard industrial practices for seamless integration into existing assemblies.

Specification Summary & Compliance

This set screw maintains precision Class 3A thread fit per UNC standards with 8-32 thread size and 0.164" diameter. Manufactured to ASME B18.3 specifications ensuring dimensional accuracy and performance reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming safe use across industrial sectors. Features include 1/4" length, coarse thread spacing, and cone point tip type with 90° angle for consistent engineering performance.