8-18 x 1 5/8 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake #N/A and the coarse thread ensures

and the coarse thread ensures a secure hold in drywall

The washer has a diameter of 12mm and a thickness of 2mm

This 3/8-16 x 2 1/2 Ribbed Neck Carriage Bolt is made of Grade 5 steel and has a fully threaded design

The 100º countersink angle allows the screw head to sit flush with the surface

8-18 x 1 5/8 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake #N/A and the coarse thread ensuresThese 8 18 x 1 5 8 inch Unslotted Indented Hexwasher Self Drill Screws are full thread and made of zinc and baked. They are designed for use in a variety of applications, including metal to metal, metal to wood, and wood to wood. The self drilling point eliminates the need for a pilot hole, making installation quick and easy. The hex washer head provides a secure hold, and the zinc and baked finish provides corrosion resistance.