Scaffolding couplers, also called scaffold fittings or clamps, are applied with scaffolding pipes. It is durable, reliable and doing well in performance. Surface of scaffolding couplers generally are galvanized. Treatment of scaffold clamps are drop forged or pressed. The most common size of scaffold fittings is 48.3mm There are British type, German type, Japanese type etc. Scaffold couplers are packed in bags regularly. Welcom for your kind inquiry.