60mm*48mm,48.6mm*48.6mm thickness :2.75mm 3mm galvanized our  main products of  market:Form tie/P cone/D cone/Flat rib washer/scaffolding coupler/U-clip /Tierod/wing nut/threaded rod /Al pin/wedge pin/ and so on.If you If you are interested in my goods,you can contact me anytime. 

my skype:freda11179

Double coupler