Adjustment Screws for Patio Screen Doors

A quick learner from Oxnard, CA says:
September 14, 2016
Attention Please,

Can you please tell me if you all have the adjustment screw (sliding patio door wheel) in the attached photos? The screw I need looks very similar to your 84-502 and 84-506, though the 506 has more thread lines per inch then the one I need.
The screw I need appears to be a #8 or smaller with a thread count of 18 to 20 per inch ( I actually counted 19 threads per one inch). You can blow the attached pictures up and count the threads yourself to verify. I would greatly appreciate any help you can give be towards this situation.
User submitted a photo of a screw.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
September 20, 2016
Both of these screws are used with the 84-001 patio screen wheel. The 84-502 was used with a 1-1/2" wide extrusion and the 84-506 was used with a 2" wide extrusion. How wide is your patio screen door extrusion? If you'd like, you can send us some photos of your patio screen door, along with its dimensions, and we can try our best to compare screws. Yours looks like it is 1-3/8" long.
#8 x 1" SS Adjusting Screw
#8 x 1" SS Adjusting Screw
84-502
$0.57
#8 x 1-5/8" SS Adjusting Screw
#8 x 1-5/8" SS Adjusting Screw
84-506
$0.80
Spring Tension Screen Door Roller
Spring Tension Screen Door Roller
84-001
$1.52
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