C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Sep 20, 2018 | 08:56 AM
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Default What Thread Size?


It appears to be a #8, but having trouble detecting it's thread count. Can someone help me on this?
Thanks much.
Steve

BTW, how in hell do you accurately measure 5 to 10 inch-pounds?
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Old Sep 20, 2018 | 11:04 AM
  #2  
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Originally Posted by Cavu2u

It appears to be a #8, but having trouble detecting it's thread count. Can someone help me on this?
Thanks much.
Steve

BTW, how in hell do you accurately measure 5 to 10 inch-pounds?
Steve,

The thread size was 8/32 x 1/2, but the screw also had a slightly smaller head than a standard 8/32 screw.

https://willcoxcorvette.com/catalogs...ter+trim+screw

How do you measure inch pounds... believe it or not we have a torque wrench for this.... but rarely do you need it, on the quarter trim screws I'd just snug them up good and be careful not to over-tighten them, if you do you'll pull the insert out of the panel.

Willcox
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Old Sep 20, 2018 | 11:55 AM
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Originally Posted by Willcox Corvette
Steve,

The thread size was 8/32 x 1/2, but the screw also had a slightly smaller head than a standard 8/32 screw.

https://willcoxcorvette.com/catalogs...ter+trim+screw

How do you measure inch pounds... believe it or not we have a torque wrench for this.... but rarely do you need it, on the quarter trim screws I'd just snug them up good and be careful not to over-tighten them, if you do you'll pull the insert out of the panel.

Willcox
Thank you Willcox. Much appreciated.
8-32's do not fit in the panels in this car. I must now investigate the inserts, which appear to be brass. I have seen kits that contain these inserts, but I just don't want to go that way unless absolutely necessary. Will try a tap.
Would like to see the tool that does the torque job accurately. I in no way would seriously think of using it in this application; just have an appreciation for tools that get various jobs done right, like all the "Special Tools" listed in a GM maintenance manual (I never pass over those sections).

Steve
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Old Sep 20, 2018 | 03:15 PM
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You can buy a torque screwdriver used i gunsmithing to torque down screws if you want to be super precise. Cheap enough to buy and have. Just have to make sure to get one that goes down to 5lbs. Most start at 10-15.
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Old Sep 20, 2018 | 03:38 PM
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Originally Posted by Cavu2u
Thank you Willcox. Much appreciated.
8-32's do not fit in the panels in this car. I must now investigate the inserts, which appear to be brass. I have seen kits that contain these inserts, but I just don't want to go that way unless absolutely necessary. Will try a tap.
Would like to see the tool that does the torque job accurately. I in no way would seriously think of using it in this application; just have an appreciation for tools that get various jobs done right, like all the "Special Tools" listed in a GM maintenance manual (I never pass over those sections).

Steve
Possibly someone forced the wrong screw in them, can you even start the screws and/or can your run a tap through the them. I'm positive of the screw size because this is on screw kit that we make so I went to the master file to look up the numbers we use.

Ernie
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