Countersunk Sheet Metal Die

And in doing so your screw joint may be weakened.

Countersunk sheet metal die.

Hardware diameter countersink angle through hole diameter sheet. The point and the surface of the punch apply force and displace material as the sheet is pressed against a blank die. Sheet metal countersink chart choose from a variety of standard countersink options which can either be formed or machined into sheet part parts. Grainger offers a huge selection of sheet metal screws for your hvac and other metalwork projects.

The features of a formed countersink are the form angle major diameter minor diameter and depth see figure 1. Steel hardened steel low carbon steel and stainless steel give sheet metal screws long lasting durability. Hilitchi 10 hex washer head self drilling sheet metal tek screws assortment kit set with drill point self driller zinc plated carbon steel 160 pieces 4 5 out of 5 stars 35 13 79 13. Deburring external chamfer tool stainless steel remove burr tools 6pcs countersink drill bit deburring metal wood drill bit set 90 degree center punch tool sets for wood quick change bit.

Also known as dimple dies. Free shipping by amazon. The machined type of countersink is used in a or b series standard units for countersinking up to 10 gage material. Sheet metal hole flaring dies.

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. The die shown at the left allows the punch and die to bottom the countersink shape into the workpiece at the bottom of the stroke due to the nature of this style material will deform and a burr will occur. Create flares around already cut holes in sheet metal up to 3 16 thick to make the edges stronger and more rigid. 10 x 3 in plain 18 8 stainless steel tapping sheet metal screw with flat countersunk head type 100 item 31jn43 mfr.

Here is a web address for a chart that will help with variables such as. 4 2 out of 5 stars 60. 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. Unlike a machined countersink a formed countersink does not remove but instead displaces material.

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. Get it as soon as thu sep 3.