[C320-list] NavPod fastners - special tool?

[Alan Goodman]

Need to open the NavPod to work on my autopilot.  Appears the fastners are some sort of hex head with a post in the center of the hex opening.  Anyone know what type / brand / common name these fastners go by so I can order the right driver?  Thanks.  Alan Hull 67 Holland, MI
 		 	   		  
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