S-91273A138 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Enhanced assembly grip and torque control from the knurled head and hex socket drive, reducing tool slippage
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Precise component alignment enabled by the 3/16" shoulder diameter and standard shoulder fit
• Reliable fine-thread engagement with 10-32 UNF Class 2A threads, ensuring vibration resistance and secure fastening
• Durable long-term operation backed by Rockwell B55 hardness for wear resistance
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries

Professional Applications & Engineering Value

This 18-8 Stainless Steel shoulder screw is engineered to address critical alignment and corrosion challenges in precision assemblies. The 10-32 UNF fine thread and Class 2A thread fit provide excellent vibration resistance, making it ideal for machinery, automotive, and electronics where reliable fastening is paramount. The 3/16" shoulder length and diameter offer a precise pivot or bearing surface, reducing wear on mated components. With a hex socket drive and knurled head, it ensures secure installation in tight spaces, while the stainless steel material guarantees longevity in moist or chemical-exposed environments, supporting maintenance-free operation in industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for consistent precision. Dimensions include a shoulder diameter of 3/16" (tolerance: -0.004" to -0.002") and shoulder length of 3/16" (tolerance: -0.005" to 0.005"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.