Dr.Al
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- Gloucestershire, UK
Mixed box of new fangled metric screws to try, whats wrong with a good old inch 8?![]()
If you like inches, what size drill bit do you need for a clearance hole for a #8 screw? (Answer is 'obviously' 5/32"). For a 4 mm screw you need a 4 mm clearance hole. Okay, so a #8 screw is the basically same size as a 4 mm screw, but it's so much simpler with metric.