S-90251A146 6-32 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker maintains secure fastening in temperatures from -50° to 250°F, preventing loosening in dynamic applications
• Superior corrosion resistance from 18-8 stainless steel construction ensures long-term reliability in harsh industrial environments
• Precise thread engagement with Class 3A thread fit provides consistent, reliable clamping force for critical assemblies
• High-strength durability with Rockwell B80 hardness offers excellent wear resistance and mechanical stability
• Space-saving headless design allows for flush mounting in confined spaces while maintaining full torque capability
• Easy installation and removal with 1/16" hex drive enables efficient maintenance and adjustment operations
• Enhanced grip performance from cup tip design concentrates pressure for superior holding power on shafts and components

Professional Applications & Engineering Value

This 6-32 UNC set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and precise positioning are critical. The 18-8 stainless steel construction combined with Class 3A thread fit ensures dimensional accuracy and corrosion resistance for long-term reliability in machinery, automotive, and electronic assemblies. The integrated nylon patch thread locker effectively counters vibrational loosening without requiring additional locking components, simplifying assembly while maintaining performance across a wide temperature range (-50° to 250°F). The headless design with cup tip provides maximum holding power in space-constrained applications, making it ideal for securing collars, gears, and pulleys where flush mounting is essential. These industrial set screws meet rigorous engineering standards while offering consistent, repeatable performance in high-vibration environments.

Specification Summary & Compliance

This set screw features 6-32 UNC coarse threads with Class 3A thread fit for precision engagement and meets ASME B18.3 manufacturing specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial applications. Manufacturing adheres to strict dimensional tolerances with right-hand thread direction and proper thread spacing for consistent performance across assemblies.