Umbilical hose clamp for 33HB Gates 1/2" ID air hose with a 3/8" barb fitting. This style clamp would have been in use from the 1920's to the 1960's. If you are going to use a 1/2" barb fitting or different hose size, clamp size will have to be adjusted. If you require a different size, select "custom size" and email me with what your desired clamping size is, i.e. internal diameter of the hose clamp.
The clamp has been designed to easily accomodate different clamping diameters, with a few key strokes I can update the model and machine virtually any sized clamp. Each clamp is CNC precision machined out of aluminum bronze for strength and corrossion resistance. The original clamps were cast bronze and pretty rough traditionally, but these clamps are made with modern techniques and finishing process. Clamps are then tumbled to reduce the shine and present a more subdued look that will patina beautifully over time. Each clamp includes one silicon bronze 10-32 x 3/8" slotted machine screw.
All size are made to order and come with a two week lead time, sometimes faster, sometimes slower depending on current machining jobs and amount of clamps ordered.