S-92695A818 1/2"-20 x 3/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, extending service life in demanding environments
• Precise component positioning through 118° cone point tip that bites securely into shafts and collars
• Superior thread engagement with Class 3A UNF fine threads ensuring vibration-resistant fastening
• High-strength performance backed by Rockwell C45 hardness for reliable load-bearing capacity
• Streamlined installation with headless design and 1/4" hex drive for flush mounting in tight spaces
• Regulatory compliance assurance meeting major industrial standards for quality and safety
• Optimized for fine-adjustment applications with right-hand fine threads providing superior clamping force

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions where vibration resistance and precision alignment are paramount. The Class 3A UNF fine threads maintain tight tolerances in high-speed machinery, preventing loosening under dynamic loads. The 118° cone point tip creates positive mechanical locking against rotational forces in pulleys, gears, and collars. Manufactured from alloy steel with Rockwell C45 hardness, it withstands substantial shear forces while the black-oxide surface treatment provides reliable corrosion protection in industrial environments. Ideal for precision equipment, automotive assemblies, and manufacturing machinery requiring headless fasteners with dependable holding power.

Specification Summary & Compliance

This set screw maintains Class 3A thread fit per UNF standards with precise 1/2"-20 fine threads and 0.5" thread diameter. Manufacturing complies with ASME B18.3 and ASTM F912 specifications. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial use.