S-91381A674 6-32 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide alloy steel construction, extending service life in harsh environments
• Precise Class 3A thread fit ensures reliable, vibration-resistant fastening for secure assemblies
• Brass soft tip design prevents surface marring and damage to sensitive components
• High durability with Rockwell C28 hardness for consistent performance under mechanical stress
• Headless hex drive allows flush installation in confined spaces with easy 1/16" tool access
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees industry-standard quality and environmental safety
• Coarse UNC threading enables quick installation and high resistance to loosening

Professional Applications & Engineering Value

This 6-32 UNC set screw is engineered to address critical industrial fastening challenges, combining black-oxide alloy steel for enhanced corrosion protection with a brass soft tip that eliminates surface scoring on precision shafts, gears, and collars. The Class 3A thread fit and coarse thread spacing deliver superior grip in high-vibration applications like machinery, automotive systems, and electronic enclosures, while the headless hex drive design facilitates seamless integration in space-constrained assemblies. Ideal for securing components without compromising integrity, it ensures long-term reliability in demanding industrial set screw applications.

Specification Summary & Compliance

This set screw adheres to Class 3A thread fit tolerances for precise engagement, manufactured per ASME B18.3 specifications. It features UNC coarse threads with a right-hand direction and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for environmental safety, ensuring suitability for global industrial standards.