S-94496A230 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
- Exceptional durability with 70,000 psi tensile strength and 35,000 psi shear strength, ideal for heavy-duty industrial applications.
- Superior corrosion resistance from zinc plating, extending service life in harsh environments.
- Precise alignment and smooth rotation enabled by the 1/2" shoulder diameter with tight tolerance control.
- Easy installation and removal with external hex drive and coarse UNC threads for quick assembly.
- Reliable thread engagement ensured by Class 2A thread fit, reducing the risk of cross-threading.
- High material integrity from Rockwell B80 hardness steel, providing consistent performance under load.
- Compliance with environmental standards including RoHS 3 and REACH, meeting global regulatory requirements.
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address critical challenges in machinery assembly, pivoting mechanisms, and precision equipment. The steel construction with zinc plating offers excellent corrosion resistance, reducing maintenance needs in humid or abrasive settings. The 1/2" shoulder diameter provides a stable bearing surface, minimizing wear and ensuring accurate component alignment in rotating assemblies. With coarse thread spacing and Class 2A thread fit, it delivers secure fastening without galling, making it ideal for high-vibration environments like automotive fixtures, conveyor systems, and industrial robots. Its external hex drive allows for efficient torque application, speeding up production while maintaining 70,000 psi tensile strength for long-term reliability.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with Class 2A thread fit for precise dimensional accuracy. Shoulder diameter tolerance is controlled from -0.004" to 0", and shoulder length tolerance from -0.005" to 0.005". It is manufactured from steel with Rockwell B80 hardness and meets RoHS 3 (2015/863/EU) compliance under exemption 6(a) for lead as an alloying element, along with full REACH (EC 1907/2006) compliance, ensuring it is suitable for regulated industrial and export markets.
