S-8077A128 3/4"-10 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 added protection against rust and galling.
- High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring reliability under heavy loads.
- Precise alignment and smooth rotation due to the standard shoulder fit and Class 3A thread, minimizing assembly errors.
- Secure, non-slip installation with a knurled socket head and 1/2" hex drive, allowing for high torque application.
- Broad industry compliance including ASME B18.3 standards, RoHS 3, and REACH, ensuring safety and regulatory adherence.
- Optimized for coarse UNC threading offering quick assembly and robust holding power in demanding applications.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial settings, such as misalignment and component wear. The black oxide finish enhances corrosion resistance, making it suitable for machinery, automotive, and marine applications where moisture and chemicals are present. Its Class 3A thread fit and precise shoulder dimensions ensure accurate positioning in assemblies, reducing vibration and improving operational stability. The knurled head and hex drive facilitate easy installation in tight spaces, while the high tensile and shear strengths support heavy-duty use in pivots, bearings, and linkages, delivering long-term reliability and reduced maintenance costs.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications with a Class 3A thread fit for high precision. Dimensions include a 3/4"-10 UNC coarse thread, 1" shoulder diameter with a tolerance of -0.004" to -0.002", and 1 3/4" shoulder length with a tolerance of -0.005" to 0.005". It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for industrial use.
