S-97832A144 5/16"-18 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance
- Precise component alignment thanks to the 1/2" shoulder diameter with tight tolerances for minimal play
- Secure, slip-resistant installation with knurled socket head and 1/4" hex drive for high-torque applications
- Consistent thread engagement with Class 3A thread fit and 5/16"-18 UNC coarse thread for quick assembly
- Long-term durability with Rockwell B55 hardness to withstand wear and repeated use
- Regulatory peace of mind with compliance to ASME B18.3, RoHS 3, and REACH standards
Professional Applications & Engineering Value
This stainless steel shoulder screw is engineered to address critical alignment and load distribution challenges in precision assemblies. The 1/2" shoulder diameter provides a stable bearing surface, reducing stress on threaded components and preventing misalignment in machinery, robotics, and conveyor systems. Its 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for food processing, marine, and chemical applications. The knurled socket head with 1/4" hex drive ensures secure installation even in high-vibration environments, while the 5/16"-18 UNC coarse thread allows for rapid assembly without compromising strength. This shoulder screw delivers reliable performance in demanding industrial applications, from pivots and axles to gear assemblies.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit for precise engagement and a shoulder diameter tolerance of -0.004" to -0.002" for accurate alignment. It adheres to ASME B18.3 specifications for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in global markets.
