The purpose of this hole is to reduce the amount of force needed for application by rolling the tubular portion outward. Tubular rivets are similar to solid rivets, but they have a hole at the tip..
.Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood. A sheet metal screw has sharp threads that cut into a material such as sheet metal, plastic, wood, hard rubber, aluminum, and other comparable compositions.
Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.. A sheet metal screw has sharp threads that cut into a material such as sheet metal, plastic, wood, hard rubber, aluminum, and other comparable compositions.
Commonly used with flat or lockwashers.. A machine screw, also called a stove bolt, is generally a smaller fastener threaded the entire length of its shank. Especially useful in metal-to-metal or where heavy duty fastening is required.
. A self-drilling screw, or tek screw, is similar to a sheet metal screw, but it has a drill-shaped point to cut through the substrate to eliminate the need for drilling a pilot hole.