1. JIS fixed scaffold coupler 2. fixed/ double coupler 3. 48.6*48.6mm 4. 650g, 620g, 580g 5. Zinc finish Our factory has more than 15 years experience on scaffolding coupler production. We have several kinds of scaffolding couplers, includes Japanese type, Korean type, British type, and so on.1. Size of our coupler: 42.7, 48.6, 60.5, 76.2mm.2. Thickness: 2.5, 2.75, 3.0mm3. Weight : 580g~750g4. ...