S-8077A465 4-40 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 316 Stainless Steel construction, ideal for harsh environments and extended service life.
- Enhanced durability and wear resistance from the Black Oxide finish, providing added protection against abrasion.
- High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precise thread engagement with Class 3A fit and UNC coarse threading, ensuring secure fastening and vibration resistance.
- Secure and non-slip installation thanks to the knurled socket head and 5/64" hex drive, allowing for firm tool grip.
- Accurate shoulder alignment with standard shoulder fit and tight tolerances, facilitating precise component positioning.
- Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe and sustainable use.
Professional Applications & Engineering Value
This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in industrial settings, such as corrosion in humid or chemical-exposed environments and the need for high tensile strength under dynamic loads. The Black Oxide finish not only enhances corrosion resistance but also reduces galling during assembly, while the UNC coarse thread and Class 3A fit provide reliable fastening in applications prone to vibration, like machinery assemblies and precision instruments. The knurled socket head ensures a secure grip for efficient installation, minimizing slippage and rework. Ideal for use in aerospace, automotive, and electronic enclosures, this shoulder screw delivers consistent performance where alignment accuracy and durability are paramount.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precise tolerance, ensuring reliable engagement. Dimensions include a thread size of 4-40 and shoulder diameter tolerance of -0.004" to -0.002" for accurate alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.
