S-92198A582 1/4"-20 x 12" 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 reducing replacement frequency
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high stress
- Optimized for quick assembly featuring UNC coarse threading and external hex drive for efficient installation with standard tools
- Enhanced design stability with partial threading to provide an unthreaded shank for improved shear strength and precise clamping
- Guaranteed dimensional accuracy with Class 2A thread fit ensuring consistent, secure fastening and interchangeability
- Long-term operational reliability backed by compliance with ASME B18.2.1 manufacturing standards for quality assurance
- Safe for regulated industries meeting RoHS 3 and REACH environmental directives, supporting sustainable procurement
Professional Applications & Engineering Value
This 1/4"-20 x 12" hex head screw delivers critical engineering value in demanding applications such as structural frameworks, machinery assembly, and outdoor installations. Its 18-8 stainless steel composition provides excellent resistance to rust and chemical exposure, addressing common failure points in industrial settings. The UNC coarse thread and external hex drive enable rapid installation and high torque application, reducing labor time while the partially threaded design concentrates stress away from the thread root, minimizing the risk of fatigue and stripping. With a 12-inch length, it accommodates thick materials and offers robust clamping force, making it a dependable choice for heavy-duty fastening where durability and compliance are non-negotiable.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit tolerances and UNC coarse thread specifications, ensuring precise dimensional control. It is manufactured in accordance with ASME B18.2.1 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industrial markets.
