... ,21mm,22mm,23mmBolt Size87mm, 1/2", M14Shim Size4mmColorSilverProcessDrop ForgedCertificationISO9001:2008StandardEN74, BS1139, AS1576FeatureSkidproof, Antirust, High Breaking StrengthSupply Ability500Tons/MonthPayment TermsT/T, 30 ... for develiying on time.2.Main product: Scaffolding System( Kwikstage, Cuplock, Ringlock, Haki); Scaffold Coupler( British Type, American Type, German Type, Italian ...