Hex Head Bolts Wrench Size To Use
Hello,
I bought some hex 3/8 bolts and nuts.
Yes, the O.D. of the bolt appears to be 3/8.
But a wrench that is marked 3/8 does not fit the head of the bolt.
Is there some "standard" where you can tell beforehand, for a given
diameter (size) of bolt, what wrench to use for its head ?
Thanks,
Bob
|