S-90337A348 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments.
• High-strength construction offering 70,000 psi tensile strength for reliable load-bearing in demanding mechanical assemblies.
• Precise shoulder fit with tight diameter and length tolerances ensuring accurate alignment and reduced vibration in rotating parts.
• Easy installation and removal using a standard 1/4" hex drive with a low-profile socket head for space-constrained applications.
• Wide compatibility with coarse 3/8"-16 UNC Class 2A threads for quick assembly and secure fastening in various industrial equipment.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.
• Durable material hardness at Rockwell B55, providing excellent wear resistance and extended service life.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common challenges in industrial machinery, such as misalignment and component wear. The 1/2" shoulder diameter with precise fit tolerance acts as a reliable pivot or axle, minimizing play in rotating assemblies like conveyor systems, automotive linkages, and robotic arms. Made from 18-8 stainless steel with a passivated finish, it resists corrosion from moisture and chemicals, reducing maintenance needs. The low-profile socket head and hex drive allow for easy access in tight spaces, while the coarse UNC threads ensure quick, secure fastening. Ideal for applications requiring high tensile strength and dimensional accuracy, this screw enhances assembly reliability and efficiency in mechanical engineering projects.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit for standard UNC 3/8"-16 coarse threads, ensuring consistent engagement and ease of assembly. The shoulder features precise tolerances: diameter from -0.001" to 0" and length from 0" to 0.002", supporting accurate alignment. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety standards for industrial use.