S-91273A765 1"-8 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 and black oxide finish, ideal for harsh industrial environments.
- Enhanced durability and strength with 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable, long-term performance.
- Precise alignment and smooth rotation due to the 3" shoulder with tight tolerances, reducing wear in assemblies.
- Secure and easy installation with a 1/2" hex drive and knurled head for improved grip and torque application.
- Accurate thread engagement featuring Class 2A fit and coarse UNC threading for quick assembly and reduced cross-threading risks.
- Broad compatibility with standard 1"-8 UNC thread size, ensuring easy integration into existing designs.
- Compliance with environmental regulations including RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.
Professional Applications & Engineering Value
This 1"-8 UNC shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion in demanding applications. Made from 18-8 stainless steel with a black oxide finish, it offers excellent resistance to rust and wear, making it suitable for machinery, automotive, and aerospace components. The 3" shoulder length provides a stable bearing surface for precise part positioning, while the coarse thread and Class 2A fit ensure quick, secure fastening in high-stress environments. Its knurled head and 1/2" hex drive facilitate easy installation and maintenance, reducing downtime and improving operational efficiency in assembly lines and heavy equipment.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for precise 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 consistent performance. 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.
