S-95233A256 1/4"-20 x 1" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with PTFE-coated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Optimized drive engagement through No. 3 Phillips 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
• Complete thread coverage along the 1" length, enabling full-depth engagement in various material thicknesses
• Regulatory compliance assurance meeting ASME B18.6.3 standards while being RoHS 3 and REACH compliant
• Low-friction surface from PTFE coating, facilitating smoother installation and easier maintenance

Professional Applications & Engineering Value

These PTFE-coated stainless steel pan head screws deliver critical performance advantages in demanding applications where corrosion resistance and chemical stability are paramount. The combination of 18-8 stainless steel substrate with PTFE coating creates a barrier against aggressive chemicals, moisture, and extreme temperatures, making them ideal for food processing equipment, marine components, and chemical handling systems. The 1/4"-20 UNC coarse thread configuration ensures rapid installation and reliable holding power in both metallic and non-metallic substrates, while the pan head design with Phillips drive provides a low-profile fastening solution that withstands vibration and thermal cycling. Engineers specify these industrial-grade fasteners for applications requiring consistent performance under continuous stress without compromising material integrity.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerance per UNC standards, ensuring precise engagement and consistent clamping force. Manufacturing follows ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) requirements for chemical safety. The fully threaded 1" length with coarse thread spacing provides optimal performance in various assembly applications requiring reliable fastening solutions.