S-92311A387 1/2"-20 x 3" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Exceptional holding power and vibration resistance ensured by the Class 3A thread fit and cup tip design.
• High-strength performance backed by a Rockwell B80 hardness rating for reliable, long-term use.
• Secure and easy installation with a 1/4" hex drive, providing excellent torque transmission.
• Precise fine threading (1/2"-20 UNF) for superior engagement and clamping force in critical assemblies.
• Headless design allows for flush mounting in space-constrained applications.
• Compliance with major industry standards including ASME B18.3, RoHS, and REACH for guaranteed quality and safety.

Professional Applications & Engineering Value

This 18-8 stainless steel set screw is engineered to solve critical challenges in industrial assembly, such as component slippage and loosening under vibration. The Class 3A UNF fine thread provides a tighter fit and increased tensile strength, reducing the risk of thread stripping in high-stress applications. The cup tip design bites securely into shafts and collars, ensuring permanent positioning of gears, pulleys, and other rotating components. Made from durable stainless steel, it offers excellent resistance to rust and corrosion, making it suitable for use in machinery, automotive, and outdoor equipment. The 1/4" hex drive allows for high-torque installation with standard tools, streamlining assembly processes in production environments.

Specification Summary & Compliance

This set screw features a 1/2"-20 UNF fine thread with a Class 3A fit for high precision and strength. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and safe for industrial use worldwide.