My team is using setscrews to hold many hex collars and gears in place. But they seem to be undoing themselves and come apart after a while. Will switching to 8mill hex screws fix the problem? What is the difference?
The 8mm screws will stick out a bit, so they cant be used in all locations
@drow Could you please recategorize this?
I am unsure of what you mean by hex collars, but I think you mean collar locks with hex head set screws.
My favorite trick is to use regular frame screws, but with a black spacer next to it so the screw head doesn’t hit anything. This only requires a little extra room on the end of a shaft, and makes it quicker and easier to tighten and loosen them.
Just a point of clarification: the standard VEX screw is size #8-32. The #8 is an American wire-gauge of .164" and the 32 means there are 32 threads per inch. Since set screw collars have 8-32 threads, a standard VEX screw will fit fine.
“8 mil” to someone who uses metric screws/bolts would be M8-1.25, a metric thread standard. An 8mm bolt (for those who don’t think metric) is about the size of a 5/16 bolt (or similar in diameter to a high-strength shaft), much too big for any VEX application outside of VEX-U. The 1.25 part of the M8-1.25 designation is the distance from one thread to the next in millimeters.
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