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 | Name | scaffolding girder gravelock coupler; Beam Clamp | 
| Material | drop forged carbon steel | 
| Nut sizes | 17mm, 19mm, 21mm, 22mm, 23mm | 
| Standard | BS1139 EN74 AS/NZS 1576.2:2009 | 
| Surface Finished | self-colored, electric galvanized, or hot dipped galvanized | 
| Name | scaffolding girder gravelock coupler; Beam Clamp | 
| Material | drop forged carbon steel | 
| Nut sizes | 17mm, 19mm, 21mm, 22mm, 23mm | 
| Standard | BS1139 EN74 AS/NZS 1576.2:2009 | 
| Surface Finished | self-colored, electric galvanized, or hot dipped galvanized | 





