S-90807A134 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 alloy steel construction and Rockwell C32 hardness, ensuring long service life in demanding environments.
- Superior corrosion resistance from the black oxide finish, protecting against rust and extending component lifespan.
- Precise assembly alignment due to the Class 3A thread fit and standard shoulder fit, reducing installation errors and improving machinery performance.
- High tensile strength of 140,000 psi for reliable performance under heavy loads and high-stress applications.
- Secure and easy installation with a knurled socket head and 3/16" hex drive, providing excellent grip and torque transmission.
- Versatile coarse UNC threading for quick engagement and disassembly, ideal for maintenance and repetitive adjustments.
- Compliance with RoHS 3 and REACH regulations, ensuring safe use in various industrial sectors without harmful substances.
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address common industrial challenges such as misalignment and wear in rotating assemblies. Made from alloy steel with a black oxide finish, it offers enhanced corrosion resistance, reducing downtime in humid or corrosive environments. The Class 3A thread fit and precise shoulder dimensions ensure tight tolerances for accurate positioning in machinery, automotive, and aerospace applications. Its right-hand coarse thread and knurled socket head allow for quick, secure fastening, minimizing assembly time and improving operational efficiency in high-vibration settings.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision, featuring a thread diameter of 0.375" and coarse spacing. Shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005" for consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met in industrial use.
