Threaded Rod Coupler Thread Crossover Drill Coupling ...
Coupling sleeves are also used to connect several rods to each other in the same way. Coupling sleeves have a middle stop to prevent over-threading on to the drill rod. Thread: R25, R28, R32, R38, T38, T45, T51, Function: Coupling sleeve, Adapter Coupling Type: Full-bridge, Semi-bridge We can make length and thread according to your request!
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