S-91273A257 5/8"-11 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- Enhanced torque transmission and alignment due to the precise 2-1/4" shoulder length, reducing component wear.
- High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
- Secure, non-slip fastening provided by the knurled hex socket head, ensuring reliable tool engagement.
- Easy assembly and disassembly with coarse 5/8"-11 UNC threads and Class 2A fit for quick, precise installation.
- Broad regulatory compliance including RoHS 3 and REACH, meeting strict environmental and safety standards.
- Durable performance backed by Rockwell B55 hardness, ensuring long-term reliability under stress.
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery, automation systems, and precision equipment. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it suitable for environments exposed to moisture or chemicals. The 2-1/4" shoulder length provides a stable bearing surface, minimizing misalignment and reducing wear on moving parts. With a coarse thread design and Class 2A thread fit, it ensures rapid assembly and consistent clamping force, while the hex socket head with knurling enhances grip for secure tightening in confined spaces. Ideal for applications requiring high tensile strength and precise positioning, this shoulder screw delivers reliable performance in robotics, conveyor systems, and assembly jigs.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005", ensuring precise integration. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industrial and international markets.
