S-92240A111 1/4"-28 x 1 3/8" 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 thanks to 18-8 Stainless Steel construction, ideal for harsh environments
- Exceptional load-bearing capacity with 80,000 psi tensile strength for reliable, high-stress applications
- Precise thread engagement with Class 2A fit and UNF fine threads, ensuring secure fastening and vibration resistance
- Easy installation and removal with a standard external hex drive and hex head design for common tool compatibility
- Enhanced durability from Rockwell B70 hardness, providing excellent wear resistance and long service life
- Full threading along the 1 3/8" length offers maximum grip and adjustability in various material thicknesses
- Compliance with major industry standards including ASME B18.2.1, RoHS 3, and REACH for safe, regulated use
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 1/4"-28 UNF hex head screw delivers reliable performance in machinery, automotive, and construction assemblies. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, reducing maintenance costs in humid or chemical-exposed environments. Its fine thread design and Class 2A thread fit ensure tight, secure connections that resist loosening under vibration, a common issue in dynamic equipment. With an external hex drive and fully threaded shank, installation is straightforward, allowing for efficient assembly and disassembly in tight spaces. This screw is ideal for applications requiring high tensile strength and durability, such as securing heavy components or in structural frameworks where failure is not an option.
Specification Summary & Compliance
This hex head screw features a 1/4"-28 UNF thread with Class 2A fit for precise dimensional accuracy, ensuring consistent performance. It is manufactured in compliance with ASME B18.2.1 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental and safety requirements, making it suitable for global industrial use.
