S-97832A234 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress.
• Precise Class 3A thread fit ensures secure, vibration-resistant fastening with minimal risk of loosening in critical assemblies.
• Enhanced installation grip provided by the knurled hex socket head, allowing for high-torque application without slippage.
• Accurate shoulder positioning with tight diameter and length tolerances for consistent alignment of mounted components.
• Broad compatibility with UNC coarse 2-56 threads and right-hand direction, suitable for standard industrial equipment.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw is engineered to address common industrial challenges such as component misalignment, corrosion-induced failure, and assembly instability. The UNC coarse thread and Class 3A fit provide a secure, precise connection that resists vibration and wear in dynamic applications like machinery, automotive systems, and precision instruments. The hex socket knurled head enhances torque transmission during installation, reducing the risk of tool slip and damage. With a 5/32" shoulder diameter manufactured to exact tolerances, it ensures accurate positioning of gears, pulleys, and other rotating parts, minimizing downtime and maintenance costs. Its high tensile and shear strength makes it suitable for demanding environments where reliability and durability are critical.

Specification Summary & Compliance

This shoulder screw adheres to UNC 2-56 thread standards with a Class 3A fit for high precision. The shoulder features a diameter of 5/32" with a tolerance of -0.004" to -0.002" and a length of 5/32" with a tolerance of -0.005" to 0.005", ensuring consistent performance. It is manufactured from 18-8 stainless steel with a hardness of Rockwell B55 and meets mechanical requirements of 70,000 psi tensile and 35,000 psi minimum shear strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting use in environmentally conscious industrial applications.