S-91375A239 10-24 x 5/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring precise, vibration-resistant fastening in demanding applications
• Exceptional durability from Rockwell C45 hardness Black-Oxide Alloy Steel resisting wear and mechanical stress
• Corrosion-resistant black-oxide finish extends service life in harsh industrial environments
• Secure installation with 3/32" hex drive providing reliable torque transfer without stripping
• Optimized engagement through UNC coarse threads enabling quick assembly and strong grip
• Space-saving headless design allows flush mounting where clearance is limited
• Cup tip configuration creates positive locking action on shaft surfaces

Professional Applications & Engineering Value

This 10-24 UNC set screw delivers critical engineering solutions for industrial equipment requiring permanent positioning of components on shafts, collars, and pulleys. The Black-Oxide Alloy Steel construction combined with Rockwell C45 hardness provides exceptional resistance to vibrational loosening and mechanical fatigue in high-stress assemblies. The hex drive design ensures maximum torque application without cam-out, while the cup tip creates concentrated contact pressure for superior anti-rotation performance. These industrial set screws are engineered to maintain precise alignment in machinery, automotive systems, and power transmission equipment where reliability is paramount.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision dimensional accuracy. Features 10-24 UNC coarse threads with right-hand direction and 0.19" thread diameter. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.