Dril-Flex Structural Screws are dual heat treated self-drilling tapping screws that provide the strength, ductility and resistance to embrittlement required for critical applications.

Features & Specs

• High-hardness point and lead threads for drilling and tapping
• Stalgard and Stalgard SUB Coatings provide improved corrosion resistance as well as enhanced galvanic compatibility in dissimilar metal applications, including those involving aluminum, compared with fasteners with standard zinc plating
• Fasteners coated with Stalgard typically show no red rust or other base metal corrosion on significant surfaces after 1000 hours of salt spray exposure in accordance with ASTM B117
• Lower-hardness load bearing area provides increased resistance to Hydrogen-Assisted Stress Corrosion Cracking when compared to case hardened fasteners
• Fasteners coated with Stalgard SUB typically show no red rust or other base metal corrosion on significant surfaces after 2000 hours of salt spray exposure in accordance with ASTM B117

General Applications & Uses

• Curtain walls
• Window walls/glazing
• Rainscreen
• Solar panel systems