S-92210A128 5-40 x 1/2" ASME B18.3 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 for extended service life in harsh environments
- Exceptional tensile strength rated at 70,000 psi ensures reliable performance under high-stress industrial applications
- Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Optimized flat head design with 82° countersink angle enables flush mounting and clean aesthetic finishes
- Hex drive compatibility with 5/64" drive size allows for secure installation and high torque application
- Full threading along the entire 1/2" length maximizes grip strength and load distribution
- Regulatory compliance with ASME B18.3, RoHS, and REACH standards ensures quality and environmental safety
Professional Applications & Engineering Value
These 5-40 UNC flat head screws deliver exceptional engineering value in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel composition, enhanced by passivated finish, provides superior protection against chemical exposure and atmospheric corrosion, making them ideal for marine, chemical processing, and outdoor equipment applications. The Class 3A thread fit with coarse thread spacing ensures rapid assembly and superior vibration resistance, while the 82° countersink angle facilitates seamless integration in precision-machined components. The hex drive design allows for high-torque installation in confined spaces, addressing common challenges in machinery assembly, electronic enclosures, and structural frameworks where reliable fastening is critical to operational safety and longevity.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit tolerance and UNC thread form specifications. These flat head screws comply with ASME B18.3 manufacturing standards and feature Rockwell B55 hardness for consistent mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.
