Metallics MHC48 2-9/16 to 3-1/2 Hose Clamp St-

The MHC48 adjusts over a 2-9/16 to 3-1/2 inch range, so it will tighten down on anything whose outside diameter falls inside that band. If your pipe, conduit, or hose OD sits below 2-9/16 inches you will run out of travel before the band closes, and above 3-1/2 inches it will not reach. Measure the OD of what you are clamping, not the nominal trade size, since insulation, jacketing, or a coupling will push the OD up.

There is one item here, model MHC48, and it covers the whole 2-9/16 to 3-1/2 inch span by adjusting the band. No size or finish choice to make on the order, so for a run of mixed diameters inside that range a single part number covers them all.

That is a common use for a worm-drive band clamp like the MHC48, and it is why it sits with conduit clamping hardware rather than with plumbing fittings. Because the band wraps and draws down anywhere inside 2-9/16 to 3-1/2 inches, it will bind a conduit, pipe, or sleeve to a round support of that size without needing a dedicated strap for the exact diameter. For sizing, add the support diameter plus anything stacked under the band and keep the total inside that range.

Only a driver for the worm screw, typically a flat blade screwdriver or a hex driver on the screw head. The MHC48 is a one-piece band clamp, so there is no separate bolt, nut, or backing plate to buy. Nothing about the clamp itself anchors to a wall or strut, so if you are supporting a conduit run you still need the appropriate strut, strap, or anchor for the structure.