$68.99 Gardner Bender 1/2 in. 1-Hole Plastic Cable Clamps (12-Pack)-PPC-1550UVB - The Home Depot
HILLMAN 404669 3/16-Inch X 1/2-Inch Black Nylon Cable Clamp at Sutherlands
Lokman 12 Pack 1/2 Inch Stainless Steel Cable Clamp, Rubber Cushioned Insulated Clamp, Pipe 
