hose clamp Size: 17-252mm Bandwidth:18-26mm Material: steel, stainless steel 201,301,304,316 Screw size: M5-10 hose clampW1 All zinc-platedW2 Screw and sleeve adopt galvanized ironW4 Fully adopt 200 or 300 series stainless steel W5 All stainless steel 316 hose clamp