This lot of four Mikalor Supra W2 4347 Heavy-Duty T-bolt Clamps are perfect for securing hoses in a variety of industrial applications. These clamps are manufactured in Spain by Mikalor and feature a T-bolt design and have a functional diameter range of 43-47mm to ensure a secure fit. These clamps are perfect in silicone hose installs because they are lined and prevent the hose from squeezing through the band. The band is made of type 304 stainless steel and the bolt and the fastening nut and hardware are made of QST 36-3 mild steel, with silver-white Cr3 zinc plate.  Be aware, the 43-47 MM is the adjustable range of these clamps and the clamps are 20 mm wide, and the hex on the bolt is 11mm.  We have many other sizes and materials available, please contact us for more information. Supra W2 series clamps are destined for demanding applications. These top of range heavy-duty clamps are ideal for marine applications, hydraulics, and as well as for countless industrial applications where heavy duty hose clamps are required.