S-97345A836 1/2"-13 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 strength and 35,000 psi minimum shear strength for demanding, heavy-duty applications.
- Precise alignment and smooth rotation ensured by the 4" shoulder with tight diameter and length tolerances, reducing wear on mating parts.
- Secure, high-precision fastening with a Class 3A thread fit and 1/2"-13 UNC coarse thread for reliable assembly and vibration resistance.
- Easy installation and removal using a standard 5/16" hex drive and knurled head for improved grip and torque application.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality, dimensional accuracy, and interchangeability.
- Environmentally safe for global use with RoHS 3 and REACH compliance, meeting international regulatory requirements.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 4" precision shoulder provides a consistent bearing surface for rotating components like gears, pulleys, and linkages, minimizing misalignment and eccentric wear. The Class 3A thread fit and coarse UNC thread ensure robust fastening in high-vibration environments, from heavy machinery to automation systems. Made from corrosion-resistant 316 stainless steel, it withstands exposure to chemicals, moisture, and extreme temperatures, reducing maintenance needs. The hex drive and knurled head facilitate quick assembly and disassembly, enhancing productivity in maintenance and production lines.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit for high precision, with a 1/2"-13 UNC coarse thread and a shoulder diameter tolerance of -0.004" to -0.002". It meets ASME B18.3 specifications for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safety and environmental standards are upheld.
