Doulbe Scaffold Coupler : Suitable for 48.3mm Scaffolding pipe. Material : Q235B Standard: BS1139, EN74 etc. Double Coupler : 1.0 KG/PC Swivel Coupler : 1.15 KG/PC Putlog Couper : 0.63 KG/PC OEM Service is available. For more details pls do not hesitate to contact us.