Review on Leviton 2711 Industrial Grade 30 Amp Locking Plug - NEMA L14-30P, 125/250 Volt, Grounding, Black-White by Adam Nelson

Connector looks well built. I personally like the transparent back so you can inspect the connections when tightening the screws. The only complaint I have is the 2 bolts holding the fork face to the body, the threads are very tight and if reassembled and disassembled too many times I think they will loosen and become unusable. But for me it won't be a problem because I plan to use it for my generator only. But overall I would recommend this fork.