S-90337A349 3/8"-16 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- Precision alignment and secure positioning thanks to a precisely machined 1/2" diameter shoulder with tight tolerances for minimal play.
- High-strength performance with a 70,000 psi tensile strength and Rockwell B55 hardness, built to withstand demanding industrial loads.
- Easy installation and space-saving design featuring a low-profile socket head and 1/4" hex drive for efficient assembly in confined areas.
- Reliable and consistent thread engagement provided by the Class 2A thread fit and coarse 3/8"-16 UNC thread for quick assembly.
- Environmental and regulatory compliance meeting RoHS 3 and REACH standards, making it suitable for global supply chains.
- Durable right-hand thread design ensures secure fastening in high-vibration applications common in machinery.
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to solve critical alignment and pivot point challenges in industrial machinery. The precision 1/2" shoulder diameter with tight tolerances acts as a reliable locating dowel, eliminating misalignment in assemblies and reducing wear on components. Manufactured from 18-8 stainless steel with a passivated finish, it resists corrosion in humid or chemical-exposed environments, extending service life. The low-profile socket head and hex drive allow for compact design integration and easy access with standard tools, making it ideal for applications in automated equipment, conveyor systems, and precision instruments where space and reliability are paramount.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit for consistent engagement and features a 3/8"-16 UNC coarse thread. The shoulder maintains a diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002" for precise fits. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances.
