Patent ID: 8740530
Filing Date: 2014-06-03
Classification: F16B

Abstract:
1. A fastener, comprising: a bolt having an elongated shank portion adapted to be positioned within an opening of a work piece, the work piece having a first side and a second side opposite the first side, the elongated shank portion having a first end, a second end opposite the first end, a head formed at the first end, a threaded portion having a plurality of external bolt threads, the threaded portion being adapted to extend past the second side of the work piece, and an annular groove formed proximate to the second end; and a retainer ring including an outer ring having an interior surface and at least one spring beam element extending from the interior surface, wherein the at least one spring beam element includes an elongated arm having a first end attached to the interior surface, a free, second end opposite the first end, and a tab portion formed at the second end, wherein when the bolt engages the retainer ring, the at least one spring beam element displaced and expands radially from a free position an expanded position in order to enable the bolt to travel through the retainer ring, and wherein when the retainer ring engages and aligns with the annular groove of the bolt, the at least one spring beam element springs back to its free position.