8-18 x 1 1/2 Unslot Hexwasher w/Bonded NEO EPDM Washer Self Drill Screw Full Thread Zinc Bake MCP It is made of durable

It is made of durable zinc-plated steel and features a Phillips drive for easy installation

These 6-20 x 1 5/8 Phillips flat self-drilling screws are made of zinc and baked

The hex washer head provides a secure hold and allows for easy driving with a wrench or socket

The truss head has a low profile and a rounded top

8-18 x 1 1/2 Unslot Hexwasher w/Bonded NEO EPDM Washer Self Drill Screw Full Thread Zinc Bake MCP It is made of durableThese 8 18 x 1 1 2 inch hex washer head self drilling screws feature a bonded neoprene EPDM washer for a watertight seal. They are made of steel with a zinc bake finish for corrosion resistance. The self drilling point eliminates the need for pre drilling, making installation quick and easy. These screws are ideal for use in metal roofing, siding, and other applications where a watertight seal is required.