Ideal HyGear (R) 57 Series 10-Pack 1/2" W band 1/2" W band, 2" – 4" 5/16" Hex Head SS Hose Clamp 5756051 10-0479

57 Series Hose Clamp. Fits 3-1/16in to 4in. The 57 Series is part stainless steel; clamp screw is 5/16in hex-head; plated carbon steel band: 1/2in band width, 201/301 stainless steel; housing: 201/301 stainless steel. Sold each.