I've used them for ages but never had to buy them. Is there any practical difference in the various sizes of screws and cage nuts? M6 seems to be the prolific choice, but I see 12-24 and 10-32 are ...
How to pick the right size bolt or nut every time for DIY projects Using a bolt, nut and screw gauge takes the guesswork out of your project, helping you quickly identify the exact size you need.
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