Why do some screws have threading from tip to head, whereas others are threaded from the tip to about halfway down the shank, then from there to the head, the shank is "plain"?
Commando303X 1 year ago
Fuck you, YouTube.com advertisements.
Why do some screws have threading from tip to head, whereas others are threaded from the tip to about halfway down the shank, then from there to the head, the shank is "plain"?
Commando303X 1 year ago
Fuck you, YouTube.com advertisements.
Commando303X 1 year ago