What are some good methods of tightening bolts on dumbbells?
This is not directly related to fitness or nutrition, but most people here have likely encountered loose weights at the gym.
Our dumbbells take Allen cap screws.
When tightening the screws on one side of the dumbell, the screw on the other side will typically turn.
I have used Allen wrenches on both sides; however, the ratio of distance between the two screws makes it difficult to get much leverage when tightening the screws. The problem is compounded by the fact that Allen wrenches are typically shorter than the radius of the plates used on the dumbbells.
I am just interested to know what other techniques people that work at gyms use to keep their dumbells tight.