S-94355A749 1/2"-20 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional holding power provided by the Class 3A thread fit, ensuring tight, secure fastening in critical applications
• Enhanced durability with Rockwell B80 hardness, resisting deformation under heavy loads and repeated use
• Precise installation control through the 1/4" hex drive, allowing for accurate torque application in confined spaces
• Optimal surface contact with the flat tip design, preventing component damage while maximizing grip strength
• Reliable fine thread engagement with UNF 1/2"-20 threading, offering superior vibration resistance in dynamic applications
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

These 18-8 stainless steel hex headless set screws deliver exceptional engineering value in demanding industrial environments where corrosion resistance and vibration management are critical. The Class 3A thread fit provides precise tolerance control for applications requiring maximum clamping force without thread stripping. The flat tip design distributes pressure evenly across component surfaces, preventing indentation and damage to expensive machinery parts. Particularly valuable in precision equipment assembly, automotive components, and manufacturing fixtures, these fine thread set screws maintain their grip under constant vibration and thermal cycling. The headless configuration allows for flush mounting in space-constrained applications while the 1/4" hex drive ensures reliable installation torque transmission for consistent performance across production runs.

Specification Summary & Compliance

This high-performance set screw features 1/2"-20 UNF fine threads with Class 3A thread fit for precision engagement and superior holding capability. Manufactured to exacting ASME B18.3 specifications, the fastener maintains dimensional accuracy throughout its 3/4" length with 0.5" thread diameter. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The right-hand thread direction and Rockwell B80 hardness provide consistent performance in demanding mechanical applications requiring reliable, long-term fastening solutions.