S-91381A677 6-32 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior surface protection with soft brass tip that prevents damage to mating components during installation
• Exceptional holding power achieved through Class 3A thread fit precision for secure, vibration-resistant fastening
• Enhanced durability from Black-Oxide Alloy Steel construction with Rockwell C28 hardness rating
• Reliable industrial performance meeting ASME B18.3 specifications for consistent quality and interchangeability
• Easy installation and removal with 1/16" hex drive design in headless configuration for space-constrained applications
• Environmental compliance assurance with RoHS 3 and REACH regulations for global manufacturing applications
• Optimized thread engagement through 6-32 UNC coarse thread spacing for faster assembly and reduced cross-threading risk

Professional Applications & Engineering Value

This 6-32 UNC set screw delivers critical engineering solutions for precision assembly applications where component positioning and rotational security are paramount. The Black-Oxide Alloy Steel construction provides excellent corrosion resistance while maintaining the necessary Rockwell C28 hardness for repeated adjustment cycles without thread deformation. The innovative soft brass tip addresses common industrial challenges by eliminating galling and surface marring on shafts, collars, and precision-machined components, making it ideal for industrial set screws applications in machinery, automotive, and aerospace assemblies. The headless hex drive configuration with 1/16" drive size ensures reliable torque transmission in confined spaces while the Class 3A thread fit guarantees precise engagement for vibration-resistant performance in demanding environments.

Specification Summary & Compliance

This set screw features precision 6-32 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and consistent performance. Manufacturing complies with ASME B18.3 standards ensuring interchangeability and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict material restrictions.