... AS1576 4.48.3mm*48.3mm Scaffold Tube External Joiners Item Scaffold Tube External JoinersMaterialQ235Q255Q345Surface TreatmentHDG,Galvanized, paintedNet Weight1.05-1. ... 1/2", M14Shim Size4mmColorSilverProcessPressingCertificationISO9001:2008StandardEN74, BS1139, AS1576FeatureSkidproof, Antirust, High Breaking StrengthSupply Ability500Tons/MonthPayment TermsT/T, 30% Deposit in advanceAccessoriesShim ...