Questions regarding the top mounting hole

A home owner from Woodstock, NY says:
There appears to be a mounting hole on the top of this assembly. What is the distance from that hole to the non-wheel end of the part? Is there a bottom view available? I need to determine if a screw driver can reach that hole from the bottom side of the part. My intent here is to drill that hole to a slightly larger diameter and mount the assembly from below to the patio door frame which has a threaded hole in it. Thanks.
Profile picture of Mike
Mike from SWISCO responded:
I've added two alternate views below (top and bottom). As you can see from the image, the center of the hole at the top of the roller is 19/32" from the edge. Please let me know if you have any other questions.
View from the top of the 81-092 roller.
View of the bottom of the 81-092
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