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Hex Washer Unslotted Self-Drilling (Tek) Screws With Bonded Sealing Washer With Dagger-Guard Coating

A Hex Washer Head Unslotted Self-Drilling Screw assembled with a 1/2" O.D. bonded washer creating a leak-proof seal, designed for metal to metal fastening range from .035 to .176. Dagger-Guard Coating provides excellent corrosion resistance.