S-97345A949 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 chemical exposure.
- Precise alignment and smooth rotation ensured by the 7/8" shoulder diameter with tight tolerances, reducing wear on mating parts.
- High torque capability and reliable fastening from the 1/2" hex socket drive, preventing stripping and enabling easy installation in confined spaces.
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi minimum shear strength, supporting heavy-duty applications without failure.
- Accurate and secure thread engagement due to Class 3A UNC coarse threads, providing vibration resistance and quick assembly.
- Enhanced grip and handling from the knurled head texture, allowing for manual adjustments and reducing slippage during installation.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety, quality, and environmental responsibility.
Professional Applications & Engineering Value
This 3/4"-10 UNC shoulder screw in 316 stainless steel is engineered to address critical industrial challenges, such as misalignment and corrosion in machinery. The hex socket head and knurled texture facilitate secure driving and manual handling, while the Class 3A thread fit and coarse UNC threads ensure rapid, vibration-resistant assembly. With a Rockwell B79 hardness and high tensile strength, it withstands heavy loads in applications like precision equipment, automotive assemblies, and conveyor systems. The corrosion-resistant material and standardized shoulder dimensions provide long-term reliability, reducing maintenance costs and downtime in demanding environments.
Specification Summary & Compliance
This shoulder screw features a 3/4"-10 UNC thread with Class 3A fit for precise engagement, and a shoulder diameter of 7/8" with tolerances of -0.004" to -0.002". Manufactured to ASME B18.3 specifications, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.
