Importance

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Abstract

A capped wheel nut assembly includes a metal nut and a metal cap oriented on a common axis. The nut has an elongated internally threaded body with a polygonal side wall extending from a first end thereof, toward a second end thereof. The nut has a frusto-conical seat at the second end tapering from a small diameter at a terminus of the second end to a large diameter end proximate to the polygonal side wall of the nut. The large diameter end is greater in diameter than a distance between opposite corners of the side wall of the nut. The nut has an annular recess formed in the frusto-conical seat and the frusto-conical seat defines, at least in part, a seating surface. The cap has an elongated annular side wall of substantially the same polygonal form as the side wall of the nut. The cap as an end wall closing a first end thereof, and is open at a second end thereof. The cap has a first flange extending radially outwardly beyond the side wall of the cap at the open second end of the cap. The cap has a skirt portion axially extending from the first flange in a direct away from the sidewall of the cap. The skirt portion has an internal diameter at least as large as the large diameter end of the frusto-conical seat of the nut. The cap is sleeved over the nut with its side wall surrounding the sidewall of the nut, and its end wall overlying the first end of the nut. An O-ring seal is compressed between the large diameter end and the first flange of the cap to provide an annular seal throughout 360.degree. preventing entry of moisture between the cap and the nut. The skirt is crimped over and pressed against the recessed portion of the frusto-conical surface and the skirt defining at least in part a portion of the seating surface.

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First Claim