S-95235A548 5/16"-18 x 1" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon patch thread locker that maintains integrity up to 250°F
• Exceptional torque transmission through precision hex drive design for reliable installation
• Enhanced holding power with Class 3A external thread fit ensuring tight, secure fastening
• Optimized material strength from alloy steel construction with Rockwell C45 hardness for durability
• Secure positioning capability with extended tip design for positive engagement with mating parts
• Reliable coarse thread performance using 5/16"-18 UNC threads for quick assembly and disassembly
• Industry-standard compliance meeting ASME B18.3 specifications for consistent quality

Professional Applications & Engineering Value

This alloy steel set screw with nylon patch thread locker addresses critical vibration-induced loosening in industrial applications. The Class 3A external thread fit provides precise engagement with mating components, while the extended tip ensures positive contact in shaft collars, gears, and pulleys. The hex drive design allows for high torque application without slippage, making it ideal for machinery, automotive, and manufacturing equipment where secure fastening is essential. The coarse UNC threads facilitate quick installation in production environments, and the temperature-resistant nylon patch maintains locking performance in demanding conditions up to 250°F.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A external thread fit and 5/16"-18 UNC coarse threads. The set screw features precise dimensional tolerances including tip length (0.082" with -0.008" to 0" tolerance) and tip diameter (0.203" with -0.008" to 0" tolerance). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications.