S-97345A601 5/16"-18 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 environments including marine and chemical processing.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications.
- Precise Class 3A thread fit ensures tight tolerances and secure fastening, reducing the risk of loosening under vibration.
- Easy installation and removal with a 3/16" hex socket drive and knurled head for improved grip and torque application.
- Durable shoulder design with controlled diameter and length tolerances for accurate alignment and bearing surfaces in assemblies.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability.
- Environmental and safety compliance with RoHS 3 and REACH, making it suitable for regulated industries.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. The UNC coarse thread and Class 3A fit provide rapid assembly and high clamping force, essential in machinery, automotive, and aerospace components. The knurled head and hex socket drive allow for secure tool engagement, minimizing slippage during installation. With its high tensile and shear strength, it supports heavy-duty applications like pivots, guides, and rotating assemblies, while the corrosion-resistant material ensures longevity in humid or corrosive settings, reducing maintenance costs and downtime.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for precise engagement and a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005" for accurate positioning. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.
