S-91273A688 5/8"-11 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 environments.
- High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precision alignment and reduced wear thanks to the precisely machined shoulder with standard fit and controlled tolerances.
- Secure and efficient installation using a 5/16" hex drive socket head, providing high torque transfer and reduced cam-out risk.
- Consistent thread engagement with Class 2A thread fit and coarse UNC threads for quick assembly and vibration resistance.
- Durable and long-lasting performance backed by Rockwell B55 hardness, ensuring the screw maintains integrity under stress.
- Compliance with environmental regulations, including RoHS 3 and REACH, making it suitable for global industrial supply chains.
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw is engineered to address critical challenges in industrial machinery, automation, and precision equipment. The 18-8 stainless steel material, enhanced with a black oxide finish, provides excellent corrosion resistance, reducing maintenance in humid or chemically aggressive settings. The socket head with hex drive allows for high-torque installation in confined spaces, while the precisely dimensioned shoulder ensures accurate component alignment, minimizing misalignment and wear in rotating assemblies. With a coarse thread and robust tensile strength, it offers reliable fastening in high-vibration applications such as motor mounts and conveyor systems, enhancing operational uptime and safety.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent assembly. Dimensions include a shoulder diameter of 5/8" (tolerance: -0.004" to -0.002") and shoulder length of 1" (tolerance: -0.005" to 0.005"), ensuring precision in manufacturing. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use.
