how do you determine the size of a wrench to use on a nut or bolt.?
- RonLv 710 months agoFavourite answer
I look at the bolt, I make a guess as to what size a wrench I need. The more you do it the easier it is to pick the right one.
- hartLv 610 months ago
take a caliper and you will know
- Trump 2020Lv 710 months ago
people with experience know the bolt size by looking at it. Sometimes those metric sizes can throw you off, but usually you're right.
- The DevilLv 710 months ago
Look at the not and mentally estimate the size, then try wrenches that might fit. Use the one with the best fit. I have a small caliper I measure things with and that helps as well.
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- thebax2006Lv 710 months ago
You see if the wrench or socket fits the damn bolt jojo.
- ScottLv 710 months ago
Experience over time.
- KayleenRLv 710 months ago
after a while you just know. It also helps to know what type of bolts your car has,eg metric, Whitworth, UNF BSF etc etc
- notLv 710 months ago
You put in the time, experience. There are some cheats: for example Honda is mostly 8, 10, 12, 14 and 17. You can tell those apart pretty easily. Bring the other sizes to the party and you'll be fumbling around. GM prefers 13 and 15 not 12 or 14. Recognize the pattern of using favorite sizes.
- 10 months ago
Trial and error
- Anonymous10 months ago
If you have a manual or shop book it will have information on how to repair things and the sizes of the bolts and everything, but most regular folk don't have access to that, so you just try and see which one fits, you have to make sure it fits nice and isn't lose because one size higher could still fit but it isn't the right size and you don't want that.