S-8077A157 2-56 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 316 stainless steel construction, ideal for harsh environments and extended service life.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress.
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in assemblies.
- Enhanced durability and reduced galling from the black oxide finish, providing added wear resistance.
- Secure, non-slip installation facilitated by the knurled socket head and 5/64" hex drive.
- Accurate component alignment due to the standard shoulder fit and controlled diameter/length tolerances.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with a black oxide finish is engineered to address critical challenges in precision assemblies, such as in machinery, automotive, and electronics. The 2-56 UNC coarse thread and Class 3A fit provide superior holding power and vibration resistance, reducing the risk of loosening in dynamic applications. The knurled socket head allows for easy, secure driving with standard hex tools, enhancing installation efficiency. Its high tensile and shear strength ensures reliability in load-bearing scenarios, while the corrosion-resistant material and finish extend service life in demanding industrial environments, minimizing maintenance and replacement costs.
Specification Summary & Compliance
This shoulder screw features a 2-56 UNC thread with Class 3A fit, ensuring precise dimensional accuracy and thread engagement. Key tolerances include shoulder diameter (-0.004" to -0.002") and length (-0.005" to 0.005") for consistent performance. Manufactured to high standards, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial applications without hazardous substances.
