On Saturday, February 27, 2010 at 6:47:14 AM UTC-5, Grumps wrote:
Hi

I have a need to screw into some sheets of acrylic. I have some 1/2" #6
screws. I believe this is 3.5mm in metric speak. But is that the hole size I
have to drill?
Ta.

https://www.fastenere.com/collection...t-metal-screws