$60.99 Gardner Bender 1/2 in. Plastic 1-Hole Cable Clamps (12-Pack)-PPC-1550 - The Home Depot
Lokman 12 Pack 1/2 Inch Stainless Steel Cable Clamp, Rubber Cushioned Insulated Clamp, Pipe 
100pcs 1/2 inch R-Type Cable Clamp Nylon Wire Hose Tube Fastener Fixed Cable | eBay
