S-91273A114 5-40 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 environments and reducing replacement frequency.
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing in demanding assemblies.
- Precision alignment and location ensured by the 1/8" shoulder diameter with tight tolerances, minimizing part movement and simplifying assembly.
- Secure and efficient installation via the hex socket drive and 5/64" drive size, allowing high torque application and reducing tool slippage.
- Enhanced grip and handling from the knurled head texture, facilitating manual adjustments in confined spaces.
- Broad compatibility with 5-40 UNC coarse threads and Class 2A fit, ensuring easy integration with standard components and reducing sourcing issues.
- Regulatory compliance and safety by meeting RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.
Professional Applications & Engineering Value
This 5-40 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision machinery. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for applications in moist or chemically aggressive environments, such as industrial automation, medical devices, and optical equipment. The 1/8" shoulder diameter with precise tolerances acts as a reliable pivot or spacer, reducing wear and misalignment in rotating assemblies. Combined with a hex socket head and coarse thread, it ensures quick, secure fastening even in high-vibration settings, enhancing assembly efficiency and long-term reliability for B2B technical users.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 5/16" (tolerance: -0.005" to 0.005"), ensuring high precision. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental and safety standards in industrial applications.
