S-91375A438 10-32 x 1/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide coating for extended service life in harsh industrial environments
• Superior thread precision with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
• High-strength performance from alloy steel with Rockwell C45 hardness for exceptional load-bearing capacity
• Secure installation with hex drive design providing maximum torque transfer without head protrusion
• Precise component positioning through cup tip design that creates consistent indentation on shaft surfaces
• Industry-standard compliance meeting ASME B18.3 specifications for guaranteed dimensional accuracy
• Environmental responsibility with RoHS 3 and REACH compliance for safe use across regulated industries

Professional Applications & Engineering Value

This 10-32 UNF set screw delivers exceptional engineering value in applications requiring precise component positioning and vibration resistance. The black-oxide alloy steel construction provides superior corrosion protection while maintaining the Rockwell C45 hardness needed for high-stress environments. The headless design with hex drive allows for flush mounting in confined spaces, while the cup tip ensures positive locking by creating a secure indentation on shafts and components. Particularly valuable in machinery, automotive, and precision equipment applications, this fine thread spacing fastener maintains clamping force under dynamic loads, solving common challenges of component slippage and positional accuracy in industrial assemblies.

Specification Summary & Compliance

This set screw features precision 10-32 UNF threads with Class 3A thread fit for superior dimensional accuracy and tight tolerances. Manufactured to ASME B18.3 specifications, the fastener ensures consistent performance across industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest standards for hazardous substance restrictions. Additional specifications include right-hand thread direction, 0.19" thread diameter, and 1/4" length for versatile application across various assembly requirements.