S-97832A386 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and washdown applications.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable performance under high stress.
• Precise component alignment and rotation enabled by the 2" shoulder with tight diameter and length tolerances for smooth bearing surfaces.
• Secure, high-precision threading with Class 3A fit and 8-32 UNC coarse thread for superior vibration resistance and easy assembly.
• Enhanced grip and tool engagement from the knurled hex socket head, preventing cam-out during installation with a 3/32" drive.
• Long-term reliability and durability backed by a Rockwell B55 hardness rating, resisting wear and deformation.
• Compliance with global environmental standards, being RoHS 3 and REACH compliant for use in regulated markets.

Professional Applications & Engineering Value

This 18-8 Stainless Steel shoulder screw is engineered to address critical alignment and pivot point requirements in machinery and automation. The 2" shoulder length with precise tolerances provides a stable, unthreaded bearing surface, minimizing wear on moving parts and ensuring accurate rotational or linear motion in assemblies like linkages, gears, and pulleys. Its 8-32 UNC coarse thread and Class 3A thread fit deliver high clamping force and vibration resistance, crucial for dynamic industrial environments. The hex socket head with knurling ensures secure tool engagement, reducing installation time and preventing damage. Made from corrosion-resistant 18-8 Stainless Steel, it excels in applications exposed to moisture, chemicals, or demanding conditions, offering long-term reliability and reduced maintenance.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit for high precision, with UNC coarse thread (8-32 size) and a thread length of 3/16". The shoulder has a diameter of 7/32" (tolerance: -0.004" to -0.002") and a length of 2" (tolerance: -0.005" to 0.005"). It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, tensile strength of 70,000 psi, and minimum shear strength of 35,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.