S-97345A740 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 environments and chemical exposure
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable performance in heavy-duty applications
- Precision thread engagement ensured by Class 3A fit and UNC coarse thread for secure, vibration-resistant fastening
- Accurate alignment and pivot function provided by the 5/8" shoulder with tight diameter tolerance for smooth rotational movement
- Enhanced grip and tool engagement from the knurled socket head and 5/16" hex drive, preventing slippage during installation
- Regulatory compliance and safety with adherence to ASME B18.3 standards, RoHS 3, and REACH for global industrial use
- Durable, long-lasting performance backed by Rockwell B79 hardness, resisting wear and deformation under load
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw is engineered to address critical challenges in precision machinery, automated systems, and heavy-duty equipment. The 3/8"-16 UNC coarse thread with Class 3A fit ensures rapid assembly and high clamping force, reducing the risk of loosening in high-vibration environments. The precisely machined 5/8" shoulder diameter acts as a reliable pivot or spacer, maintaining alignment in rotating assemblies like conveyor rollers, linkages, and bearing mounts. Made from corrosion-resistant 316 stainless steel, it withstands moisture, chemicals, and extreme temperatures, making it suitable for food processing, marine applications, and industrial automation. The knurled socket head and hex drive facilitate easy installation with standard tools, enhancing efficiency in maintenance and production lines.
Specification Summary & Compliance
This shoulder screw features a 3/8"-16 UNC thread with Class 3A precision fit and a shoulder diameter of 5/8" (tolerance: -0.004" to -0.002"). It complies with ASME B18.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and reliability in industrial applications.
