S-91273A694 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, ideal for harsh industrial environments
- Enhanced wear protection from black oxide finish, reducing friction and extending service life
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Precise component alignment thanks to the 2 1/4" shoulder length with tight tolerances for stable assemblies
- Secure installation and removal with 5/16" hex socket drive and knurled head for improved grip
- Reliable thread engagement using 5/8"-11 UNC coarse threads with Class 2A fit for consistent fastening
- Compliance with environmental standards including RoHS 3 and REACH for safe, sustainable use
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, while the black oxide finish minimizes galling and wear during repeated use. The 2 1/4" shoulder length with precise tolerances ensures accurate positioning of components like gears, pulleys, and bearings, reducing vibration and misalignment. With a Rockwell B55 hardness and high tensile strength, it withstands heavy rotational and axial loads in applications such as automotive assemblies, conveyor systems, and precision manufacturing equipment. The socket head design with knurled texture allows for easy installation in confined spaces, enhancing maintenance efficiency.
Specification Summary & Compliance
This shoulder screw features 5/8"-11 UNC coarse threads with Class 2A thread fit for standard tolerance, ensuring reliable fastening. The shoulder diameter is 5/8" with a tolerance of -0.004" to -0.002", and the shoulder length is 2 1/4" with a tolerance of -0.005" to 0.005" for precise fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial components.
