S-8077A872 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 and black oxide finish, ideal for harsh industrial environments
- Exceptional mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications
- Precision alignment and smooth rotation ensured by the 7/8" shoulder diameter with tight tolerance control
- Reliable thread engagement with Class 3A fit and coarse UNC threading for secure fastening in high-vibration settings
- Easy installation and removal using the 1/2" hex drive and knurled head for improved grip
- Long-term durability supported by Rockwell B79 hardness and compliance with ASME B18.3 standards
- Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for global supply chain compatibility
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with black oxide finish is engineered to address critical challenges in machinery assembly, pivoting mechanisms, and precision equipment. The 3/4"-10 UNC thread with Class 3A fit ensures minimal backlash and consistent clamping force, while the 3" shoulder length provides stable bearing surfaces for rotating parts. The knurled head and hex drive facilitate tool engagement in confined spaces, reducing installation time. Ideal for industrial applications requiring resistance to chemicals, moisture, and wear, this screw maintains dimensional stability under loads up to 70,000 psi tensile strength, making it a reliable choice for automotive, marine, and manufacturing sectors.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications, this shoulder screw features a Class 3A thread fit with UNC coarse threading for secure engagement. Dimensional tolerances include shoulder diameter of -0.004" to -0.002" and shoulder length of -0.005" to 0.005". The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to international environmental and safety standards for industrial components.
