S-8077A875 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 industrial environments and extended service life.
- Enhanced wear resistance and reduced light reflection provided by the black oxide finish, improving durability and usability.
- High torque transmission and secure installation enabled by the 1/2" hex drive and knurled head, preventing tool slippage.
- Precise component alignment and rotation ensured by the 6" long shoulder with tight diameter tolerance for reliable performance.
- Excellent thread engagement and vibration resistance from the Class 3A UNC coarse thread fit, minimizing loosening in dynamic applications.
- Robust mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, supporting heavy-duty operational loads.
- Compliance with major 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 critical alignment and durability challenges in precision machinery. The 6" shoulder length with controlled tolerances provides a stable pivot or axle, essential for minimizing misalignment in assemblies like rotating shafts, gears, and linkages. The black oxide finish on the knurled socket head not only enhances corrosion resistance but also facilitates secure handling in high-torque applications, reducing the risk of stripping. With a Class 3A UNC coarse thread, it ensures quick assembly and reliable hold in environments subject to vibration, making it a top choice for industrial equipment, automotive systems, and heavy machinery where high tensile strength and long-term reliability are non-negotiable.
Specification Summary & Compliance
This shoulder screw features a 3/4"-10 UNC coarse thread with Class 3A fit for precision threading, a shoulder diameter of 7/8" (tolerance: -0.004" to -0.002"), and shoulder length of 6" (tolerance: -0.005" to 0.005"). Manufactured in compliance with ASME B18.3 specifications, it is also RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety standards for industrial use.
