EMD FORGED SINGLE CLAMP- tested steel & produced Cold Pressing technology with Forged Type upper cap all the couplers duly clean from burr & flushes before final assembly , EMD clamps are having boron steel hardened tempered steel hardware to make their threads more stronger & re usable up to long time all the couplers tested as per BS EN 12811-1 Class BMade from EN Grade 5.0mm thk Duly white Electro Galvanized suitable for 48.3 OD Scaffolding Tube Test Certificates9- Load Test 10- Slip Test11- Distortion Test12- Zinc Coating test