S-99934A340 6-32 x 1/4" 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 long-term reliability
• Exceptional thread precision with Class 3A fit ensuring tight, secure fastening and minimal backlash in assemblies
• Enhanced installation security via the 1/16" hex drive, preventing cam-out and allowing for high-torque application
• Optimized gripping performance from the silver tip, which deforms slightly to lock components firmly without damaging surfaces
• High mechanical durability backed by Rockwell B80 hardness, resisting wear and maintaining thread integrity under load
• Broad industrial compatibility with UNC coarse threads and right-hand direction, facilitating quick assembly and disassembly
• Headless, space-saving design enabling flush mounting in confined spaces where protruding fasteners are not feasible

Professional Applications & Engineering Value

This 6-32 UNC set screw is engineered to address critical challenges in precision machinery, automotive, and electronics assembly, where vibration resistance and component alignment are paramount. The 18-8 Stainless Steel material provides excellent corrosion resistance, reducing maintenance in humid or chemically aggressive settings. Its Class 3A thread fit and coarse thread spacing ensure rapid installation with high clamping force, minimizing the risk of loosening in dynamic applications. The headless design and 1/16" hex drive allow for secure tightening in tight spaces, while the silver tip enhances grip on shafts and collars without marring surfaces. Ideal for securing gears, pulleys, and knobs, this screw delivers reliable performance in industrial set screw applications demanding precision and durability.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 standards, ensuring dimensional accuracy and interchangeability. Thread specifications include 6-32 UNC with Class 3A tolerance for precise fit, right-hand direction, and coarse thread spacing. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free of hazardous substances and safe for various industrial and export markets.