S-92198A554 1/4"-20 x 3" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B70 hardness for demanding applications.
- Reliable fastening performance due to UNC coarse threading and Class 2A thread fit, ensuring consistent engagement and vibration resistance.
- Easy installation and removal with an external hex drive and standard 7/16" head width, compatible with common tools.
- Optimized load distribution from the partially threaded design, reducing stress concentration on the shank.
- Compliance with industry standards including ASME B18.2.1, ensuring dimensional accuracy and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
This 1/4"-20 x 3" hex head screw is engineered for industrial applications where durability and reliability are critical. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for outdoor machinery, marine equipment, and chemical processing plants. Its UNC coarse thread and Class 2A thread fit ensure quick assembly and secure fastening, even in high-vibration environments. The external hex drive allows for high torque application, reducing the risk of stripping during installation. With an 80,000 psi tensile strength and partial threading, it offers optimal clamping force and fatigue resistance, solving common issues like loosening and material failure in heavy-duty assemblies.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit for consistent dimensional accuracy and features UNC coarse threading with a size of 1/4"-20. It is manufactured in compliance with ASME B18.2.1 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.
