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Hex Washer Head Self-Drilling Screw-Import

Dril-Flex fasteners are specially designed and processed to help prevent hydrogen-induced embrittlement failures. Each fasteners undergoes a unique dual-hardening process to ensure the optimal combination of ductility and hardness required for maximum performance in the field.


  • Provides the same high resistance to hydrogen-assisted failure as a Grade 5 fastener.
  • Dual hardened fastener with self-drilling point and self tapping thread.
  • Ensure consistent, reliable drilling and tapping.
  • Eliminates separate drilling and tapping operations.
  • Silver-coated Stalgard corrosion resistance coating is superior to zinc or cadmium-based finishes.
  • Can be used in applications with dissimilar materials.