S-91273A704 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 and Black Oxide finish for extended service life in harsh environments
- Precise component alignment thanks to the 5 1/2" shoulder with tight length tolerance for reliable positioning in assemblies
- High mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure and easy installation with 5/16" hex drive and knurled head for improved grip and torque application
- Broad compatibility with 5/8"-11 UNC coarse thread and Class 2A fit for easy integration into standard industrial designs
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable use
- Durable construction with Rockwell B55 hardness ensuring wear resistance and long-term performance
Professional Applications & Engineering Value
This 18-8 Stainless Steel shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery, automation systems, and precision equipment. The 5 1/2" shoulder length with minimal tolerance provides a stable bearing surface for rotating components, reducing wear and maintaining precise positioning under load. The Black Oxide finish enhances corrosion resistance without compromising the material's inherent strength, making it ideal for environments exposed to moisture or chemicals. Combined with the 5/8"-11 UNC coarse thread and Class 2A fit, it ensures quick assembly and reliable performance in high-vibration applications, from conveyor systems to robotic arms, where misalignment can lead to operational failures.
Specification Summary & Compliance
This shoulder screw features a 5/8"-11 UNC coarse thread with Class 2A fit for standard industrial compatibility. The shoulder diameter is 5/8" with a tolerance of -0.004" to -0.002", and the shoulder length is 5 1/2" with a tolerance of -0.005" to 0.005" for precise alignment. Manufactured from 18-8 Stainless Steel with a Black Oxide finish, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for global industrial use.
