Patent ID: 8734072

Claim:
A locking threaded fastener comprising: a fastener body having a threaded portion and an unthreaded portion defining a bore, the fastener body further having a shoulder and defining first and second recesses open through the shoulder and communicating with the bore, the first and second recesses are isolated from the environment surrounding the fastener body; a single locking element including a coil portion and first and second tangs extending from the coil portion, the locking element located within the bore, the first and second tangs extending into the first and second recesses respectively to engage the fastener body upon rotation of the fastener body, the locking element circumferentially surrounded without interruption by the fastener body; and a retainer at least partially covering the locking element and retaining the locking element within the bore and the first and second tangs within the first and second recesses respectively.