Apr 14 2005 13.
Countersink thin sheet metal.
Illustration on this page.
After drilling a hole in the table for the screw you will be using and the matching hole in the sheet metal use this punch to make a depression in the sheet metal so the screw head sits below the surface of the sheet metal.
Free shipping on your first order shipped by amazon.
No c sink needed no metal removed from the sheet metal and more strength at the area of the screw head.
And in doing so your screw joint may be weakened.
Get it as soon as thu sep 3.
They have finishing washers you could use for your purpose instead of having to countersink the thin metal sheet unless you want the screw head flat level with the surface.
Sheet metal countersink chart choose from a variety of standard countersink options which can either be formed or machined into sheet part parts.
Rocaris 3 piece 1 4 hex 12 16 19mm countersink bore set for wood metal quick change bit pack in metal box.
Machined countersinks are created with a drill press and formed countersinks are made with punch press tooling the best option depends on your project and part geometry.
When countersinking metal sheet you may enlarge the through hole on the bottom of the sheet too much before you get the hole on the top of the sheet large enough for the screw head to sit flush.