Is there a chart showing the proper pilot hole for sheet metal screws? I know, or think I know, 1/8' for a #8 screw, but what about #4, #6,#10, #12? - Quora
![wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/3798q.png)
wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange
![No.8 (4.2mm) x 1.1/2 inch (38mm) Pozi Self Tapping Countersunk Screws (DIN 7982C Z) - A2 Stainless Steel: Accu.co.uk: Precision No.8 (4.2mm) x 1.1/2 inch (38mm) Pozi Self Tapping Countersunk Screws (DIN 7982C Z) - A2 Stainless Steel: Accu.co.uk: Precision](https://i.accu.co.uk/360/_APC/SPKT-A2/0_14.png)
No.8 (4.2mm) x 1.1/2 inch (38mm) Pozi Self Tapping Countersunk Screws (DIN 7982C Z) - A2 Stainless Steel: Accu.co.uk: Precision
![wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/QFhEk.jpg)
wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange
![wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/4n67A.jpg)