S-90251A250 10-32 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch thread locker that maintains secure fastening in high-vibration environments
• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial conditions
• Precise thread engagement with Class 3A UNF fine threads ensuring tight tolerances and reliable performance
• Wide temperature compatibility with nylon patch functioning from -50° to 250°F for diverse operating conditions
• Enhanced installation control through hex drive design allowing high torque application without head interference
• Optimized surface contact with cup tip design providing superior gripping force on mating components
• Consistent mechanical performance backed by Rockwell B80 hardness for durable, long-lasting fastening solutions

Professional Applications & Engineering Value

This 10-32 UNF Class 3A set screw delivers critical vibration resistance in demanding industrial applications where loosening under dynamic loads poses significant reliability concerns. The nylon patch locking mechanism provides permanent anti-vibration properties without compromising the 18-8 stainless steel material's inherent corrosion resistance. Engineered with fine UNF threads and precise Class 3A fit, this headless design ensures maximum engagement depth in tight spaces while the cup tip concentrates clamping force for superior component positioning. Ideal for precision machinery, automotive assemblies, and electronic enclosures requiring secure fastening that withstands thermal cycling from -50° to 250°F without degradation.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit tolerances for precision assembly. Features 10-32 UNF fine threads with right-hand direction and 3/16" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The 18-8 stainless steel construction provides consistent performance with Rockwell B80 hardness rating.