S-94495A301 3/8"-16 x 3/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locker that maintains secure locking from -50° to 250°F
• Superior corrosion protection through black-oxide surface treatment on alloy steel construction
• Precise thread engagement with Class 3A fit UNC coarse threads ensuring reliable fastening in demanding applications
• Exceptional durability from Rockwell C45 hardness rating for long service life under heavy loads
• Easy installation and removal with hex drive design providing positive torque transmission
• Space-saving headless design allowing flush mounting where clearance is limited
• Flat tip configuration delivering maximum surface contact for superior holding power

Professional Applications & Engineering Value

This 3/8"-16 UNC Class 3A set screw delivers critical performance in industrial applications where vibration resistance and permanent locking are paramount. The black-oxide alloy steel construction provides excellent corrosion resistance while maintaining the Rockwell C45 hardness needed for high-strength requirements. The nylon patch thread locker creates a permanent bond that withstands temperature extremes from -50° to 250°F, eliminating the need for secondary locking mechanisms. The hex drive design ensures reliable installation torque transmission, while the headless configuration makes it ideal for machinery, automotive components, and precision equipment where space constraints exist. These set screws solve common engineering challenges of component slippage and loosening under dynamic loads.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with UNC coarse threads and Class 3A thread fit for precision engagement. The 3/8"-16 thread size and 3/8" length provide standardized dimensions for consistent performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across various industries.