S-94355A745 1/2"-13 x 2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
• Exceptional holding power from Class 3A thread fit, ensuring tight, secure fastening and vibration resistance.
• High-strength durability with Rockwell B80 hardness, providing reliable performance under heavy-duty loads.
• Optimized for high-torque installation using a 1/4" hex drive, allowing for easy and secure tightening in confined spaces.
• Enhanced grip and alignment from the flat tip design and coarse UNC threads, preventing component slippage.
• Industry-standard compliance with ASME B18.3 specifications, guaranteeing dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This 1/2"-13 UNC Class 3A hex headless set screw is engineered to solve critical fastening challenges in demanding industrial settings. Manufactured from 18-8 Stainless Steel, it provides excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive assemblies, and outdoor equipment where environmental exposure is a concern. The coarse thread spacing and flat tip design ensure maximum grip and prevent loosening under vibration, a common failure point in dynamic systems. Its headless construction and 1/4" hex drive allow for flush mounting and easy installation in tight spaces, reducing assembly time and improving overall mechanical integrity. This set screw delivers reliable, long-term performance for securing collars, gears, and pulleys on shafts, minimizing maintenance needs and downtime.

Specification Summary & Compliance

This set screw features a 1/2"-13 UNC coarse thread with a Class 3A fit for precise, high-strength engagement. It has a 2" length, 0.5" thread diameter, and right-hand thread direction. The product conforms to ASME B18.3 standards for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.