medical equipment had fallen off of a wall and killed a patient.
Geez what a way to go.
medical equipment had fallen off of a wall and killed a patient.
A lag bolt can generate tons of friction when being installed. I've seen large lag bolts broken off due to improper installation. The wood must be drilled out to about 3/4 of the diameter of the lag screw. Only the bolt's threads should make contact with the wood. Bolts should be lubricated with wax or soap prior to being installed. Lag bolts should be allowed to cool while installing them. Using a drill or an air gun will generate tremendous amounts of heat, causing the metal to weaken during installation.
All lag bolts will break if installed improperly.
Please refer to the following chart when installing lag bolts...and lubricate your lags.
http://www.portlandbolt.com/technical/lag-bolt-pilot-hole-diameters/
Joel