S-97832A204 3-48 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty applications
• Precise alignment and smooth rotation ensured by the 1/8" diameter shoulder with tight tolerances
• Reliable, vibration-resistant fastening with Class 3A thread fit and coarse UNC threads for secure connections
• Easy installation and removal using the 5/64" hex socket drive and knurled head for improved grip
• Long-lasting durability backed by Rockwell B55 hardness, resisting wear and deformation
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common challenges in machinery assembly, such as misalignment and component wear. Made from 18-8 stainless steel, it provides excellent resistance to corrosion and oxidation, making it suitable for applications in automotive, aerospace, and manufacturing equipment. The 1/8" shoulder diameter and 3/4" shoulder length with minimal tolerances allow for precise positioning of parts like gears and pulleys, reducing friction and extending service life. The Class 3A thread fit and coarse UNC threads ensure a tight, reliable hold even under high vibration, while the hex socket drive and knurled head facilitate quick maintenance. Ideal for use in pivots, axles, and rotating assemblies, this screw enhances operational efficiency and reduces downtime in demanding industrial settings.

Specification Summary & Compliance

This shoulder screw features a 3-48 UNC thread with Class 3A fit for high precision, ensuring consistent performance in threaded applications. The shoulder diameter is 1/8" with a tolerance of -0.004" to -0.002", and the shoulder length is 3/4" with a tolerance of -0.005" to 0.005", providing exact dimensional control. Manufactured from 18-8 stainless steel, it meets mechanical properties including 70,000 psi tensile strength and Rockwell B55 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible procurement and use in global markets.