S-90778A146 6-32 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Exceptional thread precision with Class 3A fit ensures reliable, vibration-resistant fastening in critical assemblies
• Secure component locking provided by the 90° cone point that digs into shafts for permanent positioning
• High durability with Rockwell B80 hardness maintains structural integrity under mechanical stress
• Space-saving headless design allows flush mounting where protruding fasteners aren't feasible
• Easy installation and removal with 1/16" hex drive that accommodates standard tools
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global applications

Professional Applications & Engineering Value

This 316 stainless steel set screw delivers critical performance where corrosion resistance and precise component positioning are paramount. The headless hex drive design with 6-32 UNC coarse thread provides reliable fastening in confined spaces while the 90° cone point creates permanent mechanical locks on shafts, collars, and gears. Engineered with Class 3A thread fit precision, it eliminates backlash in precision machinery, automotive systems, and marine equipment. The combination of Rockwell B80 hardness and 316 stainless steel material ensures long-term reliability in demanding environments where vibration, moisture, and chemicals would compromise ordinary fasteners.

Specification Summary & Compliance

This set screw features 6-32 UNC coarse threads with Class 3A precision fit for superior thread engagement. Manufacturing complies with ASME B18.3 specifications ensuring dimensional accuracy and performance reliability. The component is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting international environmental and safety standards for industrial use.