Dril-Flex® Structural Self-Drilling Fasteners

• Self-drilling point



• Material/Heat Treat:
  
  Alloy steel with dual hardening:
  
  -Higher hardness (HRC 52 min.) point for fast, posistive drilling
  -Lead threads with lower-hardness (HRC 28 - 34) load-bearing threads



• Silver Stalgard® corrosion-resistant finish