So far so good. I’ve only had it on for about 2 weeks now. I had to replace one that was the non-locking knob since someone stole it.

This little baby is a must have if you are mounting your farm-style jack outside your vehicle. Very heavy in the hand, it is definitely got some quality construction going on. Feels like it weights 2-3 times the standard non-locking knob that came with my HM-900 mount. I am also pretty sure someone has already tried it, as I left my vehicle being able to read the Hi-Lift logo through the windshield, came back and it was turned 180 degrees. Keep unsavory people from taking your hard earned tools, spend the $30 on it. I believe it mounts on a standard 3/8" UNC bolt, opening up a wide variety of locking options.

I purchased two of these for my HiLift bed mount. This product solves the security dilemma in a cosmetic way as well as ease of removing and reinstalling the hilift. Off the road the last thing you need to look for is a wrench. Unlock the device with the key and simply twist with your hands. I live this!

I bought this for the bull bar mount and it is the wrong thread size. Apparently this is meant to fit the hood mount. I should have checked the size first. The quality is great and I will keep it for another use.

Works Perfectly. This is the cleanest, least intrusive means to secure my jack.