S-91273A623 5/16"-24 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 and black oxide finish, ideal for harsh industrial environments.
- Precise component alignment thanks to the 2" shoulder with standard fit, ensuring accurate positioning and reduced assembly wear.
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under stress.
- Secure, non-slip installation using the 5/32" hex drive and knurled head, allowing for high torque application without stripping.
- Consistent thread engagement with Class 2A fit and 5/16"-24 UNF fine thread, providing vibration resistance and secure fastening.
- Enhanced durability from Rockwell B55 hardness, offering excellent wear resistance and long service life.
- Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe, sustainable use.
Professional Applications & Engineering Value
This 5/16"-24 UNF shoulder screw is engineered to address critical alignment and fastening challenges in precision assemblies. The 2" shoulder length provides a stable bearing surface for rotating parts like gears and pulleys, minimizing misalignment and reducing wear. Made from 18-8 stainless steel with a black oxide finish, it resists corrosion in demanding environments such as machinery, automotive, and electronics. The Class 2A thread fit and UNF fine thread ensure tight, vibration-resistant connections, while the socket head with hex drive allows for easy installation in confined spaces. Ideal for applications requiring reliable shoulder positioning and high tensile strength, this screw enhances operational efficiency and reduces maintenance needs.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit with precise tolerances (e.g., shoulder diameter tolerance of -0.004" to -0.002") and adheres to UNF fine thread standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Manufactured to deliver consistent performance with a right-hand thread and standard shoulder fit, it meets industrial requirements for durability and precision.
