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Hex Washer Head Self Drilling Screws TEK 4 with Neoprene Washer Zinc

Hex Washer Head Self Drilling Screws TEK 4 with Neoprene Washer Zinc


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Hex Washer Head Self Drilling Screws TEK 4 with Neoprene Washer Zinc

A #12 tapping screw with an integrally formed hex washer head and assembled with 9/16 outside diameter bonded NEO-EPDM washer to create a leak proof seal, spaced or unified threads, and a drill point significantly longer than that of a # 2 or #3 point drill screw.  Designed to drill through a greater thickness of steel than a standard self drilling screw. Although it can assist in attaching metal deck to structural steel, the #4 & #5 point self drilling screws are not structural bolts and should not be used as such.   AISI 1022 or equivalent steel.  Rockwell C50-56. Meets ASTM A 510 for carbon steel manufacturing.  Zinc plating meets ASTM B-117 for salt spray corrosion.  Manufactured to SAE J78 for dimensional specifications.