S-92240A551 1/4"-20 x 2 1/4" 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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments
- Superior load-bearing capability with 80,000 psi tensile strength to withstand high-stress applications
- Reliable fastening engagement through UNC coarse threading with Class 2A fit for quick installation and vibration resistance
- Optimized torque transmission with external hex drive and 7/16" head width for secure tool engagement
- Full-length thread coverage ensures maximum grip strength across the entire 2 1/4" length
- Consistent mechanical properties with Rockwell B70 hardness for dependable performance under repeated use
- Industry-standard compliance meeting ASME B18.2.1 specifications for guaranteed interchangeability
Professional Applications & Engineering Value
These 18-8 Stainless Steel hex head screws deliver critical performance advantages for industrial applications where corrosion resistance and structural integrity are paramount. The combination of UNC coarse threading with Class 2A fit provides excellent engagement in both metals and plastics, reducing cross-threading risks during high-volume assembly. The external hex drive design allows for high torque application, making these fully threaded screws ideal for machinery, structural frameworks, and heavy equipment where vibration resistance is essential. With their 80,000 psi tensile strength, they reliably replace inferior fasteners in demanding environments including manufacturing plants, marine applications, and outdoor infrastructure where environmental factors would compromise lesser materials.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with 1/4"-20 UNC coarse threads and Class 2A thread fit tolerances ensuring consistent performance. These screws conform to ASME B18.2.1 mechanical and dimensional specifications for hex head fasteners. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making them suitable for regulated industries and international supply chains.
