S-90291A875 3/8"-24 ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise Class 3A thread fit ensures tight, secure fastening with minimal vibration loosening
• Non-marring nylon 6/6 tip protects sensitive surfaces while providing excellent vibration resistance
• Wide temperature tolerance from -50° to 250°F maintains performance across diverse operating conditions
• High-strength Rockwell B80 hardness delivers reliable durability under repeated use
• Fine thread spacing provides enhanced holding power and superior adjustment precision
• Compact hex drive design allows easy installation in confined spaces with standard tools

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A hex headless set screw solves critical engineering challenges in precision assembly applications. The 18-8 stainless steel construction provides excellent corrosion resistance for demanding environments, while the green nylon 6/6 plastic tip prevents damage to expensive components and maintains secure positioning despite vibration. The fine thread spacing and Class 3A thread fit deliver superior clamping force and positional accuracy in machinery, automotive, and electronic assemblies where movement must be precisely controlled. The headless design with 3/16" hex drive enables flush mounting in space-constrained applications, making it ideal for shafts, collars, and precision adjustment mechanisms requiring reliable, non-slip performance.

Specification Summary & Compliance

This set screw maintains Class 3A thread fit precision with 3/8"-24 UNF fine threads and right-hand thread direction. Manufactured to ASME B18.3 specifications with Rockwell B80 hardness for consistent performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.