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Chart comparing standard screw / nut / hole sizes | Screws and bolts, Metal working tools, Drill bit sizes
![Taskar Nut & Bolt Measuring Gauge & Screw Pitch Checker (Imperial/Metric) : Amazon.co.uk: DIY & Tools Taskar Nut & Bolt Measuring Gauge & Screw Pitch Checker (Imperial/Metric) : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71xWDbHAWbL._SL1500_.jpg)
Taskar Nut & Bolt Measuring Gauge & Screw Pitch Checker (Imperial/Metric) : Amazon.co.uk: DIY & Tools
![What imperial machine screw has a diameter of 4.5mm and a thread pitch of ~1mm? - Home Improvement Stack Exchange What imperial machine screw has a diameter of 4.5mm and a thread pitch of ~1mm? - Home Improvement Stack Exchange](https://i.stack.imgur.com/ebiE0.png)
What imperial machine screw has a diameter of 4.5mm and a thread pitch of ~1mm? - Home Improvement Stack Exchange
Imperial vs metric size for grub screws: DIY and Photo Experiments Forum: Digital Photography Review
![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)