S-93985A502 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 416 stainless steel construction, ideal for demanding industrial environments
• Exceptional mechanical strength with 120,000 psi tensile strength and Rockwell C26 hardness for reliable load-bearing performance
• Precise alignment and positioning enabled by the 1/2" shoulder diameter with tight tolerance control
• Secure hex socket drive with 1/4" drive size providing high torque transmission and reduced stripping risk
• Consistent thread engagement through Class 2A UNC coarse threads ensuring reliable fastening in high-vibration applications
• Environmental compliance assurance with RoHS 3 and REACH regulations for global market acceptance
• Optimized for automated assembly with smooth head texture and standard socket profile for efficient installation

Professional Applications & Engineering Value

This precision shoulder screw addresses critical alignment challenges in industrial machinery, automation systems, and precision equipment. The 416 stainless steel construction provides excellent corrosion resistance while maintaining Rockwell C26 hardness for durability in high-stress applications. The precisely machined 1/2" shoulder diameter serves as a reliable locating surface for rotating components, bearings, and linkages, eliminating the need for additional spacers or alignment fixtures. The 3/8"-16 UNC coarse thread with Class 2A fit ensures rapid assembly and disassembly while maintaining vibration resistance. The hex socket head design allows for compact installation in confined spaces, making these shoulder screws ideal for precision manufacturing equipment, robotic arms, and conveyor systems where dimensional accuracy and reliability are paramount.

Specification Summary & Compliance

This shoulder screw features Class 2A thread fit per UNC standards with precise shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002". Manufactured to inch system specifications with 3/8"-16 UNC coarse threads, 5/8" thread length, and 1/2" shoulder diameter. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for industrial fastener applications.