S-93386A502 5/16"-18 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel material, ideal for harsh industrial environments and extended service life
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in critical assemblies
• Reliable cup point design provides excellent grip and resistance to loosening under vibration and dynamic loads
• Heavy-duty UNC coarse threads enable quick installation and high resistance to stripping in coarse materials
• Compact hex headless style allows for flush mounting in space-constrained applications
• Standardized 5/32" hex drive offers compatibility with common tools for efficient assembly and maintenance
• Compliance with ASME B18.3 guarantees consistent quality and dimensional accuracy for engineering reliability

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 400 Nickel set screws deliver exceptional performance in corrosive or high-moisture environments where standard fasteners fail. The hex headless cup point design ensures maximum contact pressure and anti-rotation security, making them ideal for securing collars, gears, and pulleys on rotating shafts. With UNC coarse threads and Class 3A fit, they provide rapid installation and vibration resistance in machinery, automotive, and marine equipment. The combination of corrosion-resistant material and precise manufacturing solves common issues of fastener degradation and loosening, extending maintenance intervals and improving operational safety.

Specification Summary & Compliance

This set screw features a 5/16"-18 UNC coarse thread with Class 3A fit for precise dimensional accuracy, manufactured in compliance with ASME B18.3 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets requiring restricted substance compliance.