S-92210A568 1/4"-20 x 6" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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 and passivated finish, ensuring long-term reliability in harsh environments
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications
- Precise thread engagement with UNC coarse threading and Class 3A fit for secure fastening and vibration resistance
- Optimized flush mounting featuring standard flat head profile with 82° countersink angle for seamless surface integration
- Enhanced installation efficiency through hex drive design with 5/32" drive size for reliable torque transmission
- Full-length threading providing maximum grip and load distribution across the entire 6" length
- Regulatory compliance assurance meeting ASME B18.3, ASTM F879, RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these 1/4"-20 flat head screws deliver exceptional performance in machinery assembly, structural frameworks, and equipment manufacturing. The 18-8 stainless steel material combined with passivated finish provides superior protection against chemical exposure and atmospheric corrosion, significantly extending service life in challenging environments. The UNC coarse threading with Class 3A fit ensures rapid installation and maintains secure fastening under vibration and dynamic loads. The hex drive configuration allows for high-torque application without slippage, while the 82° countersink angle creates flush surfaces critical for safety and aesthetics in precision assemblies.
Specification Summary & Compliance
This fully threaded flat head screw features precise 1/4"-20 UNC coarse threading with Class 3A thread fit for superior dimensional accuracy. Manufacturing complies with ASME B18.3 specifications and ASTM F879 standards for consistent quality and performance. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for industrial components.
