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#12-14 x 7/8" Hex Washer Head Dril-Flex TEK Screw

Mfg#: 654AF621
Product#: 654AF621
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SPECIAL ORDER ONLY – Call your local branch (see Location link above). Dril-Flex® fasteners are specially designed and processed to help prevent hydrogen-induced brittle failures. Each fastener undergoes a unique dual-hardening process to ensure the optimal combination of ductility and hardness required for maximum performance in the field. Testing of this product, in accordance with ASTM standards, has proven that Dril-Flex fasteners provide the same resistance to hydrogen-assisted cracking (HAC) as a Grade 5 fastener


  • Eliminates separate drilling and tapping operations
  • Ensures consistent, reliable drilling and tapping
  • Complies with Buy America Act
  • Lower-hardness (HRC 28 – 34) load-bearing threads
  • Higher hardness (HRC 52 min) point and lead threads
  • Provides the same high resistance to hydrogen-assisted failure as a Grade 5 fastener
  • Corrosion resistance superior to zinc or cadmium based finishes
  • Can be used in applications with dissimilar materials


  • Material: Carbon Steel
  • Color: Silver
  • Thread Type: Self-Tapping
  • Finish: Stalgard
  • Head Style: Hexagonal Washer
  • Screw Size: NO 12-14 in
  • Standards: ASTM Specified, ICBO Evaluation
  • Material Specification: ASTM B117
  • Point Type: Tek
  • Length Under Head: .875 in
  • Special Features: 0.187 in Drilling Capacity
  • Usage: For Metal Panels to Steel Structural's