Paul from SWISCO responded:
August 21, 2017
The frame screw that goes through the side hole of the 81-095 patio door roller is a #10-32 Phillips head screw. You can use our 33-057, or go to a hardware store for a longer/shorter version. The length of the screw will depend more on the size of your door than on the roller. The top mounting screw that goes under the wheel housing into the door would be a truss head screw like our 33-073 #8 X 1/2" screw.
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