Due to their sturdiness, lag screws are used to fasten those items that are subjected to huge forces. How big should a pilot hole be for a lag bolt? The pilot hole is the unthreaded section of the shank that is supposed to match the bolt size. Lag bolts require a stepped pilot hole...
although I have never stripped a Torx screw, I have seen cheep bits snap trying to remove them. G Galve2000 Active Member May 20, 2013 1,065 390 NYC Apr 12, 2016 #1,334 EcoHeliGuy said: You can buy Left hand drill bits that help in this situation. They cut into the screw ...
If your vehicle has one, it’s the perfect place to install a whip light. 2 Use a socket wrench to remove the bolt covering the hole. The hole will have a metal bolt through it with a locking nut on the bottom. Reach underneath the hole to get at the nut. Rotate it ...