S-97832A199 3-48 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Precise alignment and secure positioning thanks to the Class 3A thread fit, minimizing play and vibration in assemblies.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding mechanical applications.
• Easy installation and removal using a standard 5/64" hex key, combined with a knurled head for enhanced grip and torque application.
• Durable and wear-resistant with a Rockwell B55 hardness, maintaining structural integrity under repeated use.
• Compliance with global regulations, including RoHS 3 and REACH, ensuring safe and sustainable use in various industries.
• Versatile coarse UNC threading for quick assembly and disassembly, ideal for applications requiring frequent adjustments.

Professional Applications & Engineering Value

This 3-48 UNC thread shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for environments exposed to moisture, chemicals, or extreme temperatures. The Class 3A fit ensures tight tolerances, reducing the risk of loosening under vibration and enhancing the precision of rotating components like bearings, pulleys, and linkages. The hex socket head with knurled texture allows for secure tool engagement, minimizing slippage during high-torque installations. Commonly used in machinery, automotive, and electronics assemblies, this shoulder screw offers reliable performance where exact shaft positioning and high shear strength are paramount, streamlining maintenance and improving operational longevity.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 3A thread fit for precise dimensional accuracy. Key specifications include a thread size of 3-48, shoulder diameter of 1/8" (tolerance: -0.004" to -0.002"), and shoulder length of 1/4" (tolerance: -0.005" to 0.005"). Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets stringent environmental and safety standards for industrial fasteners.