S-93691A440 3/8"-16 MS51576-38, NASM51576 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 thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- Exceptional tensile strength of 70,000 psi provides reliable fastening under high-stress conditions, reducing the risk of mechanical failure.
- Precise shoulder diameter of 1/2" with tight tolerances ensures exact alignment and smooth rotation in assemblies, minimizing wear and misalignment.
- Hex socket head design allows for easy installation and removal with standard tools, enhancing assembly efficiency.
- Class 2A thread fit and UNC coarse thread offer quick assembly and secure holding power, ideal for industrial applications.
- Compliance with MS51576-38, RoHS 3, and REACH standards guarantees product quality and environmental safety, meeting rigorous industry requirements.
- Rockwell B55 hardness ensures durability and resistance to deformation, extending the screw's service life in demanding uses.
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. Made from 18-8 stainless steel with a passivated finish, it resists corrosion and wear, making it ideal for machinery, automotive, and aerospace applications where precise component positioning is essential. The 1/2" shoulder diameter with minimal tolerances ensures accurate shaft alignment, reducing vibration and part fatigue. Its hex socket head and coarse thread facilitate quick installation, while the high tensile strength supports heavy loads, solving issues of loosening or failure in dynamic environments.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit with UNC coarse threads for precise engagement, and the shoulder dimensions adhere to tight tolerances (e.g., diameter: -0.001" to 0", length: 0" to 0.002"). It is manufactured in compliance with MS51576-38 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for industrial use.
