S-90008A711 1/4"-20 x 1/2" ASME B18.3, ASTM F837 18-8 Stainless Steel Socket Head Screws
18-8 Stainless Steel Socket Head 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
- Enhanced corrosion resistance with silver plating over 18-8 stainless steel, ideal for harsh environments and reducing maintenance costs.
- Superior thread engagement and reliability due to UNC coarse threads with Class 3A fit, minimizing cross-threading and ensuring secure fastening.
- High tensile strength of 70,000 psi and Rockwell B70 hardness for dependable performance under heavy loads and vibration.
- Easy installation and removal with a standard hex drive (3/16"), allowing for high torque application without slippage.
- Full threading along the 1/2" length provides maximum grip and adjustability in a wide range of assembly applications.
- Compliance with ASME B18.3 specifications ensures dimensional accuracy and interchangeability with other standard components.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory standards for industrial use.
Professional Applications & Engineering Value
This silver plated 18-8 stainless steel socket head cap screw is engineered to address common industrial challenges such as corrosion, high stress, and assembly efficiency. The UNC coarse thread design with a Class 3A fit offers excellent thread engagement, reducing the risk of stripping in soft materials or under dynamic loads. The hex drive and fully threaded shank allow for precise torque control and uniform clamping force, making it ideal for machinery, automotive, and electronics enclosures where vibration resistance and durability are critical. The silver plating not only enhances conductivity for specialized applications but also adds an extra layer of protection against oxidation, extending service life in demanding conditions.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for tight tolerances and reliable performance. It meets ASME B18.3 dimensional standards and is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safety and environmental responsibility.
