CAMVATE C-Clamp with 1/4 and 3/8 Thread Hole for Camera Monitor(Red T-Handle) – 1687

The aluminum body of the clamp is great, very sturdy. I have several of these, and have not been disappointed in the clamp itself.Where the problems are – are in the bolt and the handle. The first one I received, the bolt was VERY sloppy in the threads of the clamp. I felt it would likely strip out, and discovered that they had selected a standard thread bolt for a metric-thread (M8) hole. Modification #1 – get a proper bolt.The bolt is just a threaded rod with the T-handle that screws onto it, secured with a setscrew. This is not very secure as another review mentions. Modification #2: Use a small angle grinder to make a flat spot that the setscrew can press against, no more chance of it turning loose by accident.The pressure plate on the clamp is secured (loosely) with a C-clip. Since I replaced the bolt, that was not possible any longer. Modification #3: Use the grinder to narrow the end of the bolt to fit through the pressure plate hole. If you are really good, notch the end to hold the C-clip.All in all – it is moderately useful for the price, with the understanding that this is still made by the VERY lowest bidder, so the quality of construction is kinda crap. It will do the job, but be prepared for some defects out of the box. The most recent one that I bought, the T-handle isn’t even threaded straight on the bolt. It’s like it was drilled by hand, by a blind person.