S-97345A410 4-40 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 316 stainless steel construction, ideal for harsh environments and extended service life.
- High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precise Class 3A thread fit ensures secure, vibration-resistant fastening with 4-40 UNC coarse threads for easier assembly.
- Enhanced grip and torque application from the knurled socket head and 5/64" hex drive, reducing tool slippage.
- Durable mechanical properties with Rockwell B79 hardness, providing excellent wear resistance and dimensional stability.
- Accurate shoulder positioning with a 1/8" diameter and tight tolerances, enabling precise component alignment.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision assemblies, such as machinery, electronics, and automotive systems. The Class 3A thread fit and coarse UNC threads facilitate quick, secure installations while minimizing cross-threading risks. Its high tensile and shear strength supports heavy-duty operations, preventing failures under stress. The knurled socket head enhances torque transmission, ideal for spaces requiring reliable fastening without stripping. With excellent corrosion resistance from 316 stainless steel, it performs reliably in moist or chemical-exposed environments, reducing maintenance needs and downtime in industrial settings.
Specification Summary & Compliance
This shoulder screw adheres to inch system measurements with a 4-40 UNC thread size and Class 3A precision fit for consistent performance. Shoulder dimensions include a diameter of 1/8" with tight tolerances (e.g., -0.004" to -0.002") to ensure accurate alignment. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting environmental safety standards in manufacturing and engineering applications.
