S-8077A488 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 industrial environments and chemical exposure.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress conditions.
- Precise alignment and secure fit ensured by the Class 3A thread fit and standard shoulder, reducing assembly errors and improving joint integrity.
- Enhanced durability and wear resistance from the Black Oxide finish, which also provides a sleek, low-reflectivity surface.
- Easy installation and removal with a 5/64" hex drive and knurled head, allowing for better grip and torque application without slippage.
- Broad compatibility with 4-40 UNC coarse threading, making it suitable for a wide range of machinery and equipment using standard inch fasteners.
- Compliance with environmental and safety standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. The Black Oxide finish not only enhances corrosion resistance but also reduces galling in high-friction applications. With a Class 3A thread fit and UNC coarse threading, it provides secure fastening in dynamic environments, minimizing loosening from vibrations. The knurled head and hex drive design facilitate quick assembly in tight spaces, making it ideal for precision machinery, automotive components, and electronic enclosures where reliability and corrosion resistance are critical.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit and UNC standards for precise dimensional accuracy, with a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.
