Sheet Metal Pilot Hole Size Chart

Inch approx us gauge material.

Sheet metal pilot hole size chart.

Tap size drilling chart provides a list of standard size taps specifying the diameter and thread spacing for fractional metric and screw sizes. Drill size hole diameter nominal screw size number of threads per inch 6 18 7 16 8 15 10 12 12 11 14 10 20 9 24 9 32 30 29 21 3 16 5 5mm l 11 32 1160 1285 1360 1590 1875 2165 2900 3438 drill size hole diameter suggested hole sizes for types ab b 25 hole size hole size suggested hole sizes for types a. The problem was i didn t know how big to drill the holes and when the holes were too small it was quite difficult to. There is nothing more aggravating when you just don t know what size drill bit to use for a pilot.

Sheet metal screws. Life while installing shelving in my home i had to drill pilot holes for 8 and 12 metal screws into studs. To help my readers out i thought i would add this quick reference chart. Pilot hole sizes for metal screws and wood screws posted 30 january 2010 at 9 43pm by michael chu filed under.

To save you time our quick reference chart above will tell you which drill bit to use for a given screw size. Clearance hole chart for inch bolts and screws according to asme b18 2 8. Thus drilling pilot holes will help you save on the materials cost and offer a better appearance to your final product. However there are times when sheet metal screws are required.