S-97345A126 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in assemblies requiring high accuracy
• Knurled hex socket head provides enhanced grip and slip resistance during installation, even with gloves or tools
• Accurate 3/16" shoulder diameter with tight tolerances maintains consistent alignment for pivots, spacers, and rotating components
• Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory acceptance for global markets
• Coarse UNC threading enables quick assembly and disassembly, reducing maintenance time in production settings

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and corrosive environments. The 8-32 UNC Class 3A thread provides a secure, vibration-resistant connection, while the 3/16" shoulder diameter with controlled tolerances ensures exact component alignment—eliminating misalignment and wear in rotating assemblies. The hex socket drive and knurled head texture facilitate easy installation in confined spaces, reducing tool slippage. Ideal for use in industrial equipment, medical devices, and marine applications, its corrosion-resistant properties and high shear strength deliver long-term reliability under dynamic loads and exposure to moisture, chemicals, or extreme temperatures.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit per UNC standards, ensuring precise engagement and minimal play. The shoulder diameter is maintained at 3/16" with a tolerance of -0.004" to -0.002", and the shoulder length is 7/8" with a tolerance of -0.005" to 0.005" for consistent performance. Manufactured from 316 stainless steel with a hardness of Rockwell B79, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting use in regulated industries requiring environmental and safety adherence.