S-97832A203 3-48 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.
• Precise alignment and reduced wear thanks to the 1/8" diameter shoulder with controlled tolerances, ensuring accurate component positioning.
• High-strength performance with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for demanding applications.
• Secure and reliable fastening achieved through the Class 3A thread fit and UNC coarse thread, providing excellent vibration resistance.
• Easy installation and removal with the hex socket drive and knurled head, offering a firm grip and reducing tool slippage.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant, ensuring safety and suitability for various markets.
• Durable material hardness of Rockwell B55 maintains thread integrity and fastener shape under load.

Professional Applications & Engineering Value

This 3-48 UNC shoulder screw is engineered to solve critical alignment and pivot point challenges in precision assemblies. The 1/8" shoulder diameter with a tight tolerance acts as a precise locating dowel, preventing lateral movement in machinery, rotating shafts, and gear assemblies. Manufactured from 18-8 Stainless Steel, it resists rust and corrosion in industrial settings, from food processing equipment to marine applications. The coarse UNC thread and Class 3A fit ensure a secure, vibration-resistant connection, while the hex socket drive and knurled head texture allow for high-torque installation in confined spaces. This combination of features reduces assembly time, minimizes part wear, and enhances the overall reliability of your mechanical systems.

Specification Summary & Compliance

This shoulder screw features a 3-48 UNC thread with a Class 3A fit for high precision. The shoulder diameter is 1/8" with a tolerance of -0.004" to -0.002", and the shoulder length is 1/2" with a tolerance of -0.005" to 0.005". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, a tensile strength of 70,000 psi, and a minimum shear strength of 35,000 psi. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.