8-18 x 3 Square Drive Flat Head Fully Threaded Self Drilling Screw Zinc & Bake WUSS round washer with a hole

round washer with a hole in the center that is used to distribute the load of a screw or bolt

and fatigue forces

This 0-80 x 9/32 Phillips pan machine screw is made of 18-8 stainless steel

The 3/8 SAE Flat Washer Zinc is a thin

8-18 x 3 Square Drive Flat Head Fully Threaded Self Drilling Screw Zinc & Bake WUSS round washer with a holeThese 8 18 x 3 Square Drive Flat Head Fully Threaded Self Drilling Screws are made of zinc and bake, making them corrosion resistant and durable. They have a square drive head for easy installation, and a flat head that sits flush with the surface. The self drilling tip eliminates the need for pre drilling, saving time and effort. These screws are ideal for a variety of applications, including metal to metal, metal to wood, and wood to wood fastening.