The Hillman Stainless Steel Flat-head Phillips Sheet Metal Screw, or tapping screw, is highly versatile and is used to attach metal, wood, fiberglass and plastic. Great for general repair around the house, the sharp threads on these sheet metal screws draw material together and ensure a secure hold. These stainless steel sheet metal screws are fully threaded with a sharp point. This flat head screw will get the job done! #10 screw size; measure 1-1/4 in. L Sheet metal screws are a part of the Hillman Deep Drawer program Pre-drilled hole is required for these stainless steel sheet metal screws Design makes it easy for them to tap into and tighten against whatever they are being installed into Stainless Steel finish makes screw perfect for exterior and most marine applications Sharp threads ensure a secure hold Flat head screw is designed for joining metal objects, and attaching metal to wood, fiberglass and plastic