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Serrated Hex Washer Unslot AB with RED-Painted Head Self Tapping Screws

Tapping screws are another kind of high quality screw we carry. Tapping screws are commonly used for attaching steel or wood parts, but are also used to fasten plastic parts together. Like all Liberty Fastener screws, tapping screws come in a variety of sizes, models and finishes.
  • Self Tapping Screws with Red-painted head
  • Across the flats: .437-.428; Head Height: .190-.172
  • Case Hardened to Rockwell C45 min. (Core Hardness: Rockwell C28-38)
  • Fully Threaded to ASME B18.6.4 /Steel Zinc Plated
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