Turn signal stalk housing

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Joined
Sep 27, 2025
Threads
3
Messages
15
Location
Indianapolis, IN
Does anyone know the thread size in the turn signal stalk housing? Used to tighten the housing to the steering column.

Pictures below.

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I believe it’s 4mm x 0.75. I just reinstalled mine last week. I can double check it in the a.m.
 
4mm x 0.7
 
Tap the hole to the next size up that doesn't fit. 6mm is like a 1/4 inch so something 8mm or 5/16 or 3/8. You can then use this size bolt and be done. Or you can make an insert with a threaded inner hole 4mm x 0,7 and a outer thread of whatever and epoxy it in.
 
Whoa, whoa, whoa! Many apologies … my brain jumped to the lower switch mount on the column. The upper column collar is quite large, like an 8 or 10 mm x 1.5, perhaps. I’m away from the house right now. I’ll confirm as soon as I get home.
 
It’s 8mm x 1.25. For real this time!

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8mm x 1.25.

Yup, ... have one right in front of me.
 
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