HI-GRIP Steel Slotted Hex Worm Drive, 13mm Band Width, 170 → 200mm ID

Standard worm-drive hose clips to BS5315 available in either BZP steel or A2 grade 18//8 stainless steel
Clips are marked with BS kitemark and appropriate BS size number
Clips are 13mm wide, except for 12-20mm sizes which are 10mm wide
7mm slotted hexagonal adjustment screw
Recommended tightening torque is dependent upon clip size as follows: 12-20mm=3Nm 22-45mm=6Nm 50-220mm=6Nm