Key bolt fastener

A key bolt comprising:

• a locking key comprising a tweezers-like complex lever having first and second generally planar elongate members, each having a pair of side edges, with one end of each member being joined to one end of the other member to form a first end of the locking key which acts as a resilient fulcrum of the lever, and with the other end of each member extending away from the first end, the other ends forming a bifurcate second end with the members in normally spaced apart relationship, each said member having a slot along the length thereof, one member having its pair of side edges at the bifurcate second end turned outwardly from the plane of the member to form a key lock;
• a bolt having a shank with a locking key-receiving adaptation at one end thereof;
• and
• wherein the locking key is slidably retained to the key-receiving adaptation by a pin transversely disposed in the shank and passing through said slots at substantially right angles thereto, said locking key being slidable within the adaptation to an unlocked position wherein the first end of the locking key extends directly outwardly of the shank and forms an extension thereof and the locking key being slidable to a locked position wherein the locking key is substantially perpendicular to the shank and the key lock abuts the bolt shank to retain the locking key in locked position, the locking key being yieldable at the bifurcate second end to enable the key lock abutment to be moved from locked position to unlocked position.