Abstract: A door catch mechanism includes a housing that has a generally cylindrical body having an outer surface of a first diameter, a first end and a second end, a flange located on the first end of the body, the flange having an outer diameter greater than the first diameter of the body, a first bore formed within the housing and a shoulder forming a floor of the first bore, the shoulder including a hole there through. The housing also has a plurality of longitudinal vanes formed on the outer surface of the body, each vane being formed lengthwise along a portion of the outer surface of the body between the flange and the second end of the body opposite the flange, each vane being tapered from a smaller height to a larger height when traversing the outer surface of the body from the second end toward the first end of the housing.