S-97345A795 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 material, ideal for harsh industrial and marine environments.
- Enhanced load-bearing capacity from a 70000 psi tensile strength and 35000 psi shear strength, ensuring reliable performance under stress.
- Precise alignment and reduced wear thanks to the 5/8" shoulder diameter and standard shoulder fit, minimizing component misalignment.
- Secure and efficient installation with a 5/16" hex drive and knurled head, providing excellent grip and torque transmission.
- High thread reliability through Class 3A fit and coarse 1/2"-13 UNC threads, offering strong holding power and vibration resistance.
- Long-term durability with Rockwell B79 hardness, maintaining structural integrity in demanding applications.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. Its 1/2"-13 UNC coarse thread and Class 3A fit provide exceptional grip and vibration resistance, crucial for machinery, automotive assemblies, and precision equipment. The knurled head and hex drive facilitate easy installation in tight spaces, while the corrosion-resistant material ensures longevity in humid or chemical-exposed environments. By integrating a robust shoulder design, it supports rotational movements and reduces wear on connected parts, making it a reliable choice for industrial fasteners in high-stress applications.
Specification Summary & Compliance
This shoulder screw adheres to precise dimensional tolerances, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". It meets ASME B18.3 specifications for consistency and performance, with threads conforming to Class 3A fit and UNC standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for global industrial use.
