Forum Discussion
westend
Mar 24, 2015Explorer
Almot wrote:I can answer that one. You run a tap into the hole to make it threaded. The bolt and lock washer will then hold the ground lugs when turned into the tapped hole.
OK, with water tank I see now the need for depth control.
Back to the bolts - how do you drive a 1/4x28 bolt like This in a newly drilled hole in black steel that didn't have any screw in it before?
It was probably too obvious to Mex since he discussed the "three drill" sequence of establishing correct hole diameter.
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