S-91943A514 1/4"-20 x 3/4" Set Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide coating for longer service life in demanding environments
• Superior holding power from Rockwell C39 hardened alloy steel construction
• Secure component positioning with permanent swivel tip that accommodates up to 9° angular misalignment
• Reliable thread engagement through Class 2A UNC coarse threads ensuring consistent fastening
• Space-saving installation with headless hex drive design for confined applications
• Simplified maintenance access using standard 1/8" hex tools for quick adjustments
• Global compliance assurance meeting RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers exceptional performance in industrial machinery, automotive assemblies, and precision equipment where vibration resistance and positional accuracy are critical. The permanent swivel tip with 9° maximum angular compensation prevents component damage during installation while maintaining secure contact surfaces. Engineered with Class 2A UNC coarse threads, it provides reliable engagement in both soft and hard materials, reducing cross-threading risks. The headless hex drive design enables flush mounting in space-constrained applications, while the Rockwell C39 hardness rating ensures the fastener maintains clamping force under continuous operational stress and thermal cycling.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with 1/4"-20 UNC coarse threads and right-hand thread direction. Features include 3/4" length, 1/8" hex drive, and permanent swivel tip with 0.12" diameter. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications.