AMPLock's ball coupler lock for square edge couplers (BRU-2/BRU-2516) targets 2" and 2 5/16" square-lip couplers with ductile iron and stainless steel. Choose between Ultimate (10 lbs) and Strong (5 lbs) security levels. The disc lock cylinder uses millions of key combinations against picking and drilling. Push and lock mechanism secures
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Fit was a bit fidgety at first but once set and with the addition of thread locker is very solid.
Garry · 10 days ago
Very secure and solid!
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Steve · July 1, 2026
I have one for my car trailer and its great the square nose lock I ordered for my other trailer seems less secure , loose like you could knock it off with a sledge However for now it does the job of locking up the trailer