S-97345A264 3/8"-16 ASME B18.3 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 industrial environments and extended service life.
- High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable, heavy-duty applications.
- Precision Class 3A thread fit ensures secure, vibration-resistant fastening and consistent assembly quality.
- Knurled socket head with 1/4" hex drive provides excellent grip and torque application, reducing tool slippage.
- Accurate 1/2" shoulder diameter with tight tolerances for precise component alignment and rotational movement.
- Compliance with ASME B18.3 standards guarantees dimensional consistency and interchangeability.
- Environmentally responsible design, fully compliant with RoHS 3 and REACH regulations.
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address critical challenges in precision assembly and rotational mechanism applications. The 316 Stainless Steel material provides exceptional resistance to chemicals, saltwater, and industrial atmospheres, preventing corrosion-induced failures. The 1/2" shoulder diameter acts as a precise axle or pivot point, maintaining alignment in machinery, bearings, and linkages, which minimizes wear and extends component life. The knurled socket head enhances grip during installation, even in oily conditions, ensuring reliable torque transfer. With its Class 3A thread fit and coarse UNC thread, it offers quick assembly and high vibration resistance, making it ideal for industrial equipment, automated systems, and heavy-duty fastening where durability and precision are paramount.
Specification Summary & Compliance
This shoulder screw features a 3/8"-16 UNC thread with Class 3A fit for high precision, a shoulder diameter of 1/2" with tolerance of -0.004" to -0.002", and shoulder length of 7/8" with tolerance of -0.005" to 0.005". It is manufactured in accordance with ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.
