General Purpose Clamps are ideal for most common household and automotive applications.1/2" wide band have clean punched rectangular perforations that hold strong and connect easily.Materials belowW4: All AISI300 Series Stainless Steel W4.1: Band & Housing made from AISI200 Series Stainless Steel; Screw made from 410 Stainless SteelW2: Band & Housing made from AISI200 Series Stainless Steel; Screw made from Plated Carbon SteelW5: All AISI 316 Stainless SteelPopular Sizes Below:HC06 3/8"--7/8" 10-22mmHC08 7/16"--1" 11-25mmHC10 1/2"--1-1/16" 13-27mmHC12 1/2"--1-1/4" 13-32mmHC16 11/16"--1-1/2" 18-38mmHC20 3/4"--1-3/4" 19-44mmHC24 1"--2" 25-51mmHC28 1-1/4"--2-1/4" 32-57mmHC32 1-1/2"--2-1/2" 38-63mmHC36 1-3/4"--2-3/4" 44-70mmHC40 2"--3" 51-76mmHC44 2-1/4"--3-1/4" 57-82mmHC48 2-1/2"--3-1/2" 64-89mmHC52 2-3/4"--3-3/4" 70-95mmHC56 3"--4" 76-101mmHC60 3-1/4"--4-1/4" 83-108mmHC64 2-1/2"--4-1/2" 64-114mmHC72 3"--5 " 76-127mmHC80 3-1/2"--5-1/2" 89-140mmHC88 4"--6" 102-152mmHC96 4-1/2"--6-1/2" 114-165mmHC104 5"--7" 127-178mm