S-92703A213 4-40 x 3/4" ASME B18.3 Stainless Steel Torx Flat Head Screws
Stainless Steel Torx 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
- Enhanced torque transmission and reduced cam-out thanks to the Torx Plus IP8 drive system for reliable installation
- High mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fit and vibration resistance
- Flush mounting capability with standard 82° countersink angle for smooth, professional-looking installations
- Full threading along the 3/4" length provides maximum grip and load distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These 4-40 UNC flat head screws deliver exceptional value in precision engineering applications where reliability and corrosion resistance are critical. The combination of 18-8 Stainless Steel material and passivated finish provides outstanding protection against oxidation and chemical exposure, making them ideal for marine, food processing, and medical equipment applications. The Torx Plus IP8 drive system eliminates common installation issues like screw head stripping, while the standard 82° countersink angle ensures perfect flush mounting in precision-machined components. With fully threaded design and Class 2A thread fit, these screws maintain consistent clamping force even under vibration, solving common loosening problems in industrial machinery and electronic enclosures.
Specification Summary & Compliance
This 3/4" flat head screw features precise 4-40 UNC coarse threads with Class 2A thread fit tolerance for reliable engagement. Manufactured to ASME B18.3 specifications with complete RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring both mechanical performance and environmental responsibility. The fastener maintains dimensional accuracy with 0.212" head diameter and 0.067" head height for standardized installation across industrial applications.
