S-92240A580 5/16"-18 x 5/8" 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.
- High tensile strength of 80,000 psi ensures dependable performance under heavy loads and in demanding applications.
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
- External hex drive and hex head design allows for easy installation and high torque application with standard tools.
- Coarse UNC thread and Class 2A fit enable quick assembly and reliable engagement in a variety of materials.
- Full threading along the 5/8" length offers maximum grip and adjustability in assembled components.
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.
Professional Applications & Engineering Value
These 18-8 stainless steel hex head screws are engineered to address common industrial challenges such as corrosion, high stress, and assembly efficiency. The 5/16"-18 UNC coarse thread and Class 2A thread fit ensure secure fastening in metals, plastics, and other substrates, reducing the risk of stripping and improving load distribution. With an external hex drive, they facilitate quick installation in tight spaces, making them ideal for machinery, construction, and automotive applications. The combination of 80,000 psi tensile strength and Rockwell B70 hardness provides reliable performance in heavy-duty environments, while the fully threaded design maximizes holding power. These screws are a trusted solution for engineers seeking durable, compliant, and high-performance stainless steel fasteners.
Specification Summary & Compliance
This hex head screw features a 5/16"-18 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and reliable performance. It complies with ASME B18.2.1 manufacturing standards, ensuring consistent quality and interchangeability. Additionally, the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental compliance for global industrial use.
