8-18 x 3/8 Phillips Modified Truss head Self Drilling Screw Full Thread Zinc 12-24-3 this lag screw is perfect

this lag screw is perfect for attaching decks

These screws are strong and durable

It has a hex head for easy driving with a wrench or socket

and a Type 17 2/3 thread that ensures a strong connection

and a flange that provides increased bearing surface for secure connections

8-18 x 3/8 Phillips Modified Truss head Self Drilling Screw Full Thread Zinc 12-24-3 this lag screw is perfectThese 8 18 x 3 8" Phillips modified truss head self drilling screws are made of steel and have a zinc coating for corrosion resistance. They have a full thread and a sharp point that allows them to drill through metal without the need for a pilot hole. The modified truss head has a low profile and a large bearing surface, making it ideal for applications where a flush fit is desired. These screws are commonly used in metal roofing, siding, and other