Hi-Grip Wing Screw Hose Clips 13-20mm adjustable. Band width 9mm. Hi-Grip Hose Clips, Wing Screw Hose Clip Was Specifically Designed To Answer The Problem Of Frequently Removed Hoses Such As Found In The Garden, Home, Laboratory And Industry. The unique dovetail locking and side lugs of the wing plate guarantee a firm fixture that outlasts those of other designs. Plastic wing plate cover is supplied as standard which enables greater tightness to be obtained and is kinder to unprotected fingers. The super free-running and high efficiency worm drive gives excellent sealing.