Hose clamp with a worm thread and a short, symmetrically welded housing. Designed for securing hoses on mobile and stationary systems. Note: Material W1: Hose clamps made from material group W1 are entirely made of coated steel. The coating corresponds to galvanization, which actively protects the clamps from corrosion by acting as a sacrificial anode. However, this material is used in areas that do not require high corrosion resistance, primarily indoors. Galvanized hose clamps are minimally or only conditionally resistant to acids, strong alkalis, and salt solutions. Surface: galvanized-blue. Shape: 1. Material: steel. DIN: 3017. Material: W1. Brand: SST. Width (mm): 12. Nominal size (mm): 12-20. Quantity (pcs): 50.