S-97832A184 8-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life
• Enhanced assembly precision with Class 3A thread fit ensuring tight tolerances and reliable mating with components
• High mechanical strength delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Secure and easy installation featuring a knurled head texture and hex socket drive for improved grip and torque application
• Precise component alignment with a 1-1/2" shoulder length providing stable bearing surfaces for rotating parts
• Industry-standard compatibility with UNC coarse threads and ASME B18.3 specifications for reliable interchangeability
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe use in various industries

Professional Applications & Engineering Value

This socket head shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery. The 18-8 Stainless Steel material provides excellent corrosion resistance, reducing maintenance in humid or chemically aggressive environments. Its 1-1/2" shoulder length and precise diameter tolerances ensure accurate positioning of bearings, gears, and linkages, minimizing wear and vibration. The UNC coarse thread and Class 3A fit offer robust fastening with consistent engagement, while the hex socket drive and knurled head facilitate secure installation in confined spaces. Ideal for automation equipment, automotive assemblies, and precision instruments, this fastener enhances operational reliability and reduces downtime.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with 8-32 UNC coarse threading, ensuring high precision and interchangeability. Manufacturing adheres to ASME B18.3 standards, with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005" for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.