S-96653A255 1/4"-20 x 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with PTFE-coated 18-8 stainless steel construction for extended service life in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Optimized drive engagement through Phillips No. 3 drive design ensuring secure installation and reduced cam-out risk
• Precision thread fit with Class 2A UNC coarse threads providing consistent fastening and vibration resistance
• Flush mounting capability with standard 82° countersink angle for seamless surface integration
• Full-thread engagement along the entire 3/4" length for maximum holding power and load distribution
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these PTFE-coated stainless steel flat head screws deliver exceptional performance where corrosion resistance and mechanical reliability are critical. The combination of 18-8 stainless steel substrate with PTFE coating creates a superior barrier against chemical exposure, moisture, and extreme temperatures, significantly extending service life in applications from marine equipment to food processing machinery. The fully threaded UNC coarse thread design ensures maximum engagement in various materials, while the Class 2A thread fit maintains precise tolerances for vibration-resistant assemblies. The flat head profile with 82° countersink provides flush mounting for applications requiring smooth surfaces, making these Phillips drive screws ideal for machinery, enclosures, and structural components where both aesthetic and functional requirements must be met.

Specification Summary & Compliance

This 1/4"-20 x 3/4" flat head screw features precision UNC coarse threads with Class 2A fit ensuring dimensional accuracy and reliable performance. Manufactured to ASME B18.6.3 specifications, the fastener demonstrates compliance with rigorous engineering standards. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, confirming the absence of restricted substances. The combination of 80,000 psi tensile strength and Rockwell B70 hardness ensures mechanical integrity across demanding applications while maintaining full regulatory compliance for industrial use.