S-93985A402 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with 120,000 psi tensile strength and Rockwell C26 hardness for reliable performance in demanding applications
• Precise shoulder alignment featuring 3/8" diameter with tight tolerances for accurate component positioning and reduced assembly time
• Superior corrosion resistance through 416 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Easy installation and removal with 3/16" hex socket drive design, providing secure tool engagement and reduced fastener damage
• Reliable thread performance with Class 2A UNC coarse threads ensuring consistent engagement and vibration resistance
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe use across global markets
• Versatile right-hand thread design with 1/2" thread length for secure fastening in various machinery and equipment applications

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional engineering value in applications requiring exact component alignment and reliable fastening. The 416 stainless steel construction provides excellent corrosion resistance while maintaining the 120,000 psi tensile strength necessary for high-stress environments. The precisely machined 3/8" shoulder diameter with tight tolerances ensures accurate positioning of moving parts in machinery, reducing wear and improving operational efficiency. The UNC coarse threads with Class 2A fit offer reliable engagement in various materials, while the hex socket head design allows for secure tool engagement in confined spaces. These shoulder screws are ideal for precision applications in manufacturing equipment, automation systems, and mechanical assemblies where dimensional accuracy and long-term reliability are critical.

Specification Summary & Compliance

This shoulder screw features Class 2A thread fit with UNC coarse thread specification (5/16"-18) and precise shoulder dimensions (3/8" diameter with -0.001" to 0" tolerance). The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications. The mechanical properties include 120,000 psi tensile strength and Rockwell C26 hardness, providing reliable performance in demanding engineering environments.