Thank you for your inquiry. Below are some tips on installing Amerock products:

Amerock® includes 8-32 x 1" long machine screws with most knobs and pulls because the typical cabinet door or drawer front is 3/4" thick. This screw length should work in most applications. However, if your cabinet doors or drawer fronts are thicker than 3/4", then you will need to use longer screws for mounting. Check the thickness of both a cabinet door and a drawer front in your kitchen, as the thickness dimensions may not be the same. In general, the screw length(s) used should be 1/4" longer than the thickness of your cabinet door or drawer front material. It is not uncommon for some drawers to be constructed with a 3/4" thick front attached to a 3/4" thick drawer box. In this situation, the total drawer thickness is 1-1/2", making a 1-3/4" long screw necessary for mounting. These screws may be purchased from any hardware store. Please note that select hardware sold by Amerock may include metric screws instead of UNC screws.

If you are installing a knob, it is suggested that you create or buy a durable template prior to drilling to mark the mounting hole. This will help to ensure that the knob is positioned properly on the cabinet door or drawer front and that there is the same placement height on every cabinet.

I hope this is helpful!