S-8077A121 3/4"-10 ASME B18.3 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications.
- Precise alignment and smooth rotation enabled by the standard shoulder fit and knurled head for secure handling during installation.
- High-accuracy thread engagement with Class 3A fit and UNC coarse threads, ensuring consistent, vibration-resistant fastening.
- Enhanced durability and wear resistance from the black oxide finish and Rockwell B79 hardness, reducing maintenance needs.
- Efficient installation and removal using the 1/2" hex drive socket head, designed for standard tools and quick assembly.
- Broad industry compliance meeting ASME B18.3 standards and environmental regulations like RoHS 3 and REACH for safe, global use.
Professional Applications & Engineering Value
This 3/4"-10 UNC shoulder screw is engineered to address critical challenges in industrial settings, such as misalignment and component wear. The 316 stainless steel material provides excellent resistance to corrosion and chemicals, making it suitable for marine, chemical processing, and outdoor equipment. The black oxide finish adds an extra layer of protection against abrasion and galling, while the Class 3A thread fit and coarse UNC thread type ensure tight, reliable connections that resist loosening under vibration. With a robust socket head and knurled texture, it offers secure grip and easy torque application, reducing assembly time and improving operational efficiency in machinery, pivots, and precision assemblies.
Specification Summary & Compliance
This shoulder screw adheres to precise dimensional tolerances, including a Class 3A thread fit for high accuracy and a shoulder diameter tolerance of -0.004" to -0.002". It conforms to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and reliability in industrial applications.
