S-94731A480 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, ideal for harsh environments and reducing replacement frequency.
- High tensile and shear strength (70,000 psi tensile, 35,000 psi shear) ensures reliable performance under heavy mechanical loads.
- Precise shoulder alignment with a 1 3/4" shoulder length and tight diameter tolerance for accurate component positioning.
- Easy installation and removal using the external hex drive and coarse UNC threads, minimizing assembly time.
- Consistent thread quality with Class 2A fit, providing smooth engagement and reducing cross-threading risks.
- Durable surface and structure featuring Rockwell B55 hardness for long-term wear resistance in industrial applications.
- Environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery. The 18-8 Stainless Steel material offers excellent resistance to rust and oxidation, making it suitable for applications in humid or corrosive settings, such as food processing equipment or outdoor assemblies. The 1 3/4" shoulder length provides a stable bearing surface for rotating parts like pulleys and gears, reducing wear and maintaining precise clearances. Combined with coarse threads and an external hex drive, it allows for quick, secure fastening in high-vibration environments, minimizing downtime. Its high tensile strength and Class 2A thread fit ensure reliable performance in demanding mechanical systems, from automotive jigs to conveyor systems, enhancing operational efficiency and longevity.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. The shoulder diameter tolerance is -0.004" to 0", and shoulder length tolerance is -0.005" to 0.005", ensuring precise manufacturing. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting sustainable and safe industrial practices.
