WTB: Polk M3 II Locking Pin Monitor speaker

Item: 2 x Locking Pins for Polk M3 II monitor speakers
Price Range: negotiable
Item Condition: New or Used
Extra Info: Foolishly snapped off the ends of 2 x locking pins on one of my Polk M3 II monitor speakers.  Need to find 2 x more pins but Polk say no longer available.  Hoping someone has an unused dead set of these monitors lying around I could get parts off etc.  Have attached picture of an intact pin on one of my other monitors. Also attached Polk manual - see figure 7 for diagram showing the pin. 

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