S-95235A558 3/8"-16 x 1" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locker that maintains integrity up to 250°F (121°C)
• Superior thread engagement through Class 3A external thread fit ensuring precise, secure fastening in demanding applications
• Exceptional durability from Rockwell C45 hardened alloy steel construction resisting wear and deformation
• Enhanced torque transmission with hex drive design allowing high installation force without head protrusion
• Optimized grip strength featuring extended tip configuration for deeper material penetration and superior holding power
• Reliable standardization meeting ASME B18.3 specifications for consistent performance across industrial applications
• Environmental compliance adhering to RoHS 3 and REACH regulations for safe usage in regulated industries

Professional Applications & Engineering Value

This alloy steel hex headless set screw delivers critical engineering solutions for permanent assembly applications where vibration resistance is paramount. The nylon patch thread locker creates a chemical bond that prevents loosening under dynamic loads, while the extended tip design maximizes surface contact for superior clamping force in pulleys, gears, and collars. The Class 3A UNC coarse threads provide excellent engagement in both metallic and high-density plastic components, with the Rockwell C45 hardness ensuring the fastener maintains its structural integrity through repeated thermal cycles and mechanical stress. Ideal for industrial machinery, automotive systems, and precision equipment where disassembly isn't anticipated, this set screw eliminates the need for secondary locking mechanisms while meeting rigorous industry standards.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A external thread fit and UNC coarse thread form (3/8"-16). The fastener maintains dimensional accuracy with tip length tolerance of -0.01" to 0" and tip diameter tolerance of -0.009" to 0". Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global markets. The right-hand thread direction and standardized dimensions guarantee compatibility with existing industrial components and assembly processes.