S-97345A175 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments.
• High-strength performance offering 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.
• Easy installation and removal with a 5/64" hex drive and knurled head for improved grip and torque application.
• Durable and wear-resistant material with a Rockwell B79 hardness for long service life under mechanical stress.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chains.
• Accurate shoulder dimensions with controlled tolerances for consistent alignment and spacing in precision machinery.

Professional Applications & Engineering Value

This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in precision assembly and motion control systems. The 2-56 UNC coarse thread with a Class 3A fit provides exceptional vibration resistance and secure fastening in high-cycle applications, reducing maintenance downtime. The 1/4" shoulder length acts as a precise pivot or spacer in linkages, gears, and rotating assemblies, ensuring accurate component alignment. Made from corrosion-resistant 316 stainless steel, it performs reliably in aggressive environments like chemical processing, marine equipment, and food machinery, where material integrity is paramount. The combination of 70,000 psi tensile strength and a knurled head with hex drive facilitates easy installation and removal, enhancing efficiency in automated production lines and maintenance operations.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for precise thread engagement. Key dimensional tolerances include a shoulder diameter of 3/32" (tolerance: -0.004" to -0.002") and shoulder length of 1/4" (tolerance: -0.005" to 0.005"), ensuring consistent performance in precision applications. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting environmentally responsible and safe industrial use.