S-91375A143 6-32 x 3/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Exceptional holding power from Rockwell C45 hardness, preventing deformation under high torque applications
• Precise Class 3A thread fit ensures secure fastening with minimal backlash in precision assemblies
• Compact headless design allows flush mounting in space-constrained applications
• Reliable hex drive engagement with 1/16" drive size provides positive torque transmission
• Optimized cup tip design creates positive seating and prevents component slippage
• Industry-standard UNC coarse threads enable quick assembly and disassembly in maintenance operations

Professional Applications & Engineering Value

Engineered for precision industrial applications, these black-oxide alloy steel set screws solve critical fastening challenges where space limitations and vibration resistance are paramount. The headless design with hex drive provides reliable torque application in confined spaces, while the Class 3A UNC thread fit maintains dimensional accuracy in automated assembly systems. The Rockwell C45 hardness ensures the set screw withstands repeated adjustments without thread deformation, making it ideal for precision machinery, motor mounts, and gear assemblies where vibration resistance and corrosion protection are essential for long-term performance.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit precision for superior dimensional accuracy. The 6-32 UNC coarse thread maintains industry-standard compatibility, while the 3/16" length and 0.138" thread diameter ensure consistent performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for industrial component safety and sustainability.