The screws that disappear

GoldCrown

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The small screw that connects the threaded rod is MIA. I dropped it and it’s gone
How functional is it?
 

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The older versions had a 2-56 x 1/4″ Button Head Screw . It appears they have been switched to a 4-40 x 1/4" socket head cap screw. I and not 100% on it purpose since there is a set screw from the side, probably just to ensure that the dial is used all of the way back but I would replace it and you can probably find it at a decent mom and pop hardware store or a local hobby shop. I do carry these but shipping would cost 50x the price of the screw.
 
The older versions had a 2-56 x 1/4″ Button Head Screw . It appears they have been switched to a 4-40 x 1/4" socket head cap screw. I and not 100% on it purpose since there is a set screw from the side, probably just to ensure that the dial is used all of the way back but I would replace it and you can probably find it at a decent mom and pop hardware store or a local hobby shop. I do carry these but shipping would cost 50x the price of the screw.
I’ll look locally. If no luck I’ll get back to you. Thanks for your reply … much appreciated.
EDIT: These?
 

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That will be
I’ll look locally. If no luck I’ll get back to you. Thanks for your reply … much appreciated.
EDIT: These?
That will be the ones if it is an older version. Not really sure how to tell the cutoff date. You could probably measure the id of the hole and looks at a screw size chart to tell
 
That will be

That will be the ones if it is an older version. Not really sure how to tell the cutoff date. You could probably measure the id of the hole and looks at a screw size
I might buy the another entire assembly from you. Is this the exact replacement? How do I choose the correct eccentric?
 

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The easier way to tell is measure the diameter of your pinion gear with calipers - It will be either .220 or .250. Also usually if you have a 10" long gear rack you should have the .220 and if you have the 42" long gear rack it should be the .250. They me be some older exceptions to the rack length but I am not 100% sure
 
The easier way to tell is measure the diameter of your pinion gear with calipers - It will be either .220 or .250. Also usually if you have a 10" long gear rack you should have the .220 and if you have the 42" long gear rack it should be the .250. They me be some older exceptions to the rack length but I am not 100% sure
42" + .250
 
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