S-91273A679 1/2"-13 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, ideal for harsh industrial environments
- Exceptional tensile and shear strength rated at 70,000 psi and 35,000 psi respectively, ensuring reliable performance under heavy loads
- Precise alignment and smooth rotation due to the 5" shoulder with tight tolerances and standard shoulder fit
- Easy installation and removal with a hex drive socket head and knurled texture for improved grip
- Wide compatibility with 1/2"-13 UNC coarse thread and Class 2A fit, meeting common assembly standards
- Enhanced durability from Rockwell B55 hardness, resisting wear and deformation in repetitive use
- Compliance with environmental regulations, including RoHS 3 and REACH, for safe and sustainable applications
Professional Applications & Engineering Value
This shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial fasteners applications. The 18-8 stainless steel material, combined with a black oxide finish, provides excellent resistance to corrosion and oxidation, extending service life in demanding settings like machinery, automotive assemblies, and precision equipment. The 5" shoulder length with minimal tolerances ensures accurate component positioning, reducing misalignment and vibration issues. Featuring a 1/2"-13 UNC coarse thread and Class 2A fit, it offers secure fastening and easy maintenance, while the socket head with hex drive allows for efficient torque application in confined spaces. Ideal for use in pivots, gears, and linkages, this screw delivers reliable performance where high tensile strength and precise shoulder dimensions are essential.
Specification Summary & Compliance
This shoulder screw adheres to precise dimensional standards, including a Class 2A thread fit and UNC coarse thread specifications for consistent performance. The shoulder diameter tolerance ranges from -0.004" to -0.002", and shoulder length tolerance from -0.005" to 0.005", ensuring high accuracy in assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications without hazardous substances.
