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
![Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675) : Amazon.co.uk: DIY & Tools Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675) : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/418xd2siUqL.jpg)
Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675) : Amazon.co.uk: DIY & Tools
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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)
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/3798q.png)