S-8077A522 5/8"-11 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 and Black Oxide finish, ideal for harsh industrial environments.
- High tensile and shear strength (70,000 psi tensile, 35,000 psi shear) ensures reliable performance under heavy loads.
- Precise Class 3A thread fit for secure, vibration-resistant fastening in critical assemblies.
- Knurled socket head with 3/8" hex drive provides excellent grip and easy installation with standard tools.
- Accurate shoulder dimensions (1" diameter, 1" length) enable precise alignment and smooth rotational movement.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for global applications.
- Coarse UNC threads allow for quick assembly and disassembly, reducing maintenance time.
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical stress. The 316 Stainless Steel material, combined with a Black Oxide finish, offers exceptional resistance to chemicals and moisture, making it suitable for marine, chemical processing, and outdoor equipment. The Class 3A thread fit and precise shoulder dimensions ensure minimal backlash and reliable positioning in machinery, pivots, and rotating assemblies. Its socket head design with knurling enhances tool engagement, preventing slippage during high-torque applications. Ideal for use in industrial automation, automotive systems, and heavy-duty fixtures, this screw provides long-term durability and reduces downtime in demanding environments.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with UNC coarse threads (5/8"-11), ensuring tight tolerances and reliable performance. The shoulder diameter is 1" with a tolerance of -0.004" to -0.002", and the shoulder length is 1" with a tolerance of -0.005" to 0.005" for precise engineering applications. It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
