S-92313A709 1/2"-13 x 5/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure.
• Exceptional thread fit precision with Class 3A tolerance, ensuring reliable, vibration-resistant connections in demanding applications.
• Secure, high-torque installation enabled by the 1/4" hex drive, preventing tool slippage and ensuring consistent clamping force.
• Effective component locking provided by the cup point tip, which bites into the shaft for superior resistance to loosening.
• Optimized for coarse thread applications with 1/2"-13 UNC threads, allowing for faster installation and better performance in softer materials.
• Enhanced mechanical strength from Rockwell B80 hardness, offering excellent durability and resistance to wear over time.
• Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met for global supply chains.

Professional Applications & Engineering Value

This 316 stainless steel set screw is engineered to solve critical challenges in machinery, automotive, and marine assemblies where corrosion resistance and vibration are major concerns. The headless design with a cup point provides a flush finish and creates a permanent locking action by embedding into the mating surface, preventing axial movement in pulleys, gears, and collars. Its 1/2"-13 UNC coarse thread and Class 3A fit ensure quick, precise engagement and high clamping force, reducing the risk of thread stripping. The 1/4" hex drive allows for high-torque installation with standard tools, making it a reliable choice for maintenance and production lines requiring durable, long-lasting industrial fasteners.

Specification Summary & Compliance

This set screw features a 1/2"-13 UNC coarse thread with a precision Class 3A thread fit for tight tolerances and reliable performance. Manufactured in compliance with ASME B18.3 specifications, it ensures dimensional accuracy and interchangeability. The product is also verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.