S-92198A576 1/4"-20 x 9 1/2" 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 industrial environments
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration
- Class 2A thread fit provides consistent, precise engagement for easier assembly and reduced cross-threading risk
- External hex drive design allows for high-torque installation with standard tools, speeding up maintenance
- Partial threading offers optimal grip length while minimizing material usage and weight
- ASME B18.2.1 compliance guarantees dimensional accuracy and interchangeability with other standard components
- RoHS 3 and REACH compliance ensures environmental safety and regulatory acceptance in global markets
Professional Applications & Engineering Value
This 1/4"-20 UNC hex head screw delivers exceptional engineering value in demanding applications where corrosion resistance and structural integrity are critical. The 18-8 stainless steel material provides long-term durability in moist or chemical-exposed environments, while the coarse thread spacing ensures rapid assembly and reliable holding power in wood, metal, and composite materials. With its partial threading and external hex drive, it simplifies installation in machinery, structural frames, and heavy equipment maintenance—reducing downtime and improving operational efficiency. The combination of 80,000 psi tensile strength and Rockwell B70 hardness makes it suitable for high-stress applications, from conveyor systems to industrial assembly lines, where fastener failure is not an option.
Specification Summary & Compliance
This fastener features a 1/4"-20 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy. It is manufactured in accordance with ASME B18.2.1 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it meets industry standards for safety and performance.
