8-18 x 1 1/4 Square Drive Modified Truss Head Self Drilling Screw Full Thread Zinc C188 These self-drilling screws feature a

These self-drilling screws feature a flat head and a 3/4-inch square drive

metal to plastic

The square drive head provides excellent grip and prevents cam-out

It has a 5/16-18 thread size and a

These 12-24 x 3/8 slotted flat undercut machine screws are made of 18-8 stainless steel

8-18 x 1 1/4 Square Drive Modified Truss Head Self Drilling Screw Full Thread Zinc C188 These self-drilling screws feature aThese 8 18 x 1 1 4" Square Drive Modified Truss Head Self Drilling Screws are designed for fastening metal to metal. They feature a full thread design that provides maximum holding power, and a modified truss head that provides a low profile and a clean, finished look. The square drive design ensures a secure fit in your drill, and the zinc coating provides corrosion resistance. These screws are ideal for a variety of applications, including roofing,