S-8077A535 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, ideal for harsh environments and extended service life
- Enhanced durability and wear resistance from the black oxide finish, providing a protective layer against abrasion
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Precise and secure fit thanks to Class 3A thread fit and standard shoulder fit, minimizing loosening under vibration
- Easy installation and removal with a knurled socket head and 3/8" hex drive, offering superior grip and torque application
- Reliable alignment and spacing provided by the 5 1/2" shoulder length, ensuring accurate component positioning
- Broad industrial compatibility with coarse 5/8"-11 UNC threads, conforming to ASME B18.3 standards
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial applications where precision, strength, and corrosion resistance are paramount. The black oxide finish not only enhances aesthetic appeal but also significantly improves wear and corrosion resistance, making it suitable for machinery, automotive assemblies, and marine equipment. Its coarse UNC thread and Class 3A thread fit ensure quick assembly and a secure hold in high-vibration environments, reducing maintenance downtime. The generous 5 1/2" shoulder length provides stable support for rotating parts like bearings and pulleys, preventing misalignment and extending component life. Built to meet ASME B18.3 specifications, this socket head shoulder screw delivers consistent performance in heavy-duty fastening scenarios.
Specification Summary & Compliance
This shoulder screw adheres to precise dimensional tolerances, including a Class 3A thread fit for superior accuracy and a shoulder diameter tolerance of -0.004" to -0.002". It conforms to ASME B18.3 manufacturing standards, ensuring reliable performance in mechanical systems. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and regulatory adherence for global industrial use.
