The Ford Barn

robnara · 01-26-2022, 09:53 PM

Can anyone out there inform me on the thread size of the 4 screws that hold the starter switch to the starter.
1928 Starter 6v positive earth.

alexiskai · 01-26-2022, 11:13 PM

#10-32 x 1/4"
https://modelastore.com/index.php?ro...roduct_id=4118

1955cj5 · 01-27-2022, 10:37 AM

Bratton's lists them as 10-32 by 5/16"

https://www.brattons.com/29-31-START...uctinfo/16080/

Les Andrews mentions 10-32 by 5/16" round head on page 1-289 of Volume 1.

Bert's lists 10-32 by 1/4" as mentioned above.

Mike's A-fordable lists 10-32 by 5/16".

https://www.mikes-afordable.com/product/A11450MB.html

The sets all come with lock washers.

I know you don't want them to be too long as they can short out the field coils.

.

wrndln · 01-27-2022, 10:57 AM

I would use the 5/16" screws, especially if you install a fuse fixture on the starter, which I would certainly recommend.
Rusty Nelson

Bob C · 01-27-2022, 11:06 AM

Ford parts book shows 5/16"

robnara · 01-28-2022, 02:10 AM

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Thanks everyone for your input. I'll settle on purchasing some 3/16UNF x 5/16" length.

01-26-2022, 11:13 PM	#2
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 2,354	Re: Starter Switch screws. #10-32 x 1/4" https://modelastore.com/index.php?ro...roduct_id=4118

01-27-2022, 10:37 AM	#3
1955cj5 Senior Member Join Date: Apr 2015 Location: Boise, Idaho Posts: 1,578	Re: Starter Switch screws. Bratton's lists them as 10-32 by 5/16" https://www.brattons.com/29-31-START...uctinfo/16080/ Les Andrews mentions 10-32 by 5/16" round head on page 1-289 of Volume 1. Bert's lists 10-32 by 1/4" as mentioned above. Mike's A-fordable lists 10-32 by 5/16". https://www.mikes-afordable.com/product/A11450MB.html The sets all come with lock washers. I know you don't want them to be too long as they can short out the field coils. . __________________ Early '29 CCPU that had a 4-speed, but not any more.......in the family since '62 Last edited by 1955cj5; 01-27-2022 at 10:44 AM.

01-27-2022, 10:57 AM	#4
wrndln Senior Member Join Date: May 2010 Location: Lakeville, MN Posts: 5,162	Re: Starter Switch screws. I would use the 5/16" screws, especially if you install a fuse fixture on the starter, which I would certainly recommend. Rusty Nelson

01-27-2022, 11:06 AM	#5
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,751	Re: Starter Switch screws. Ford parts book shows 5/16"

01-28-2022, 02:10 AM	#6
robnara Junior Member Join Date: Dec 2021 Posts: 17	Re: Starter Switch screws. Sponsored Links (Register now to hide all advertisements) Thanks everyone for your input. I'll settle on purchasing some 3/16UNF x 5/16" length.

01-26-2022, 09:53 PM	#1
robnara Junior Member Join Date: Dec 2021 Posts: 17	Starter Switch screws. Can anyone out there inform me on the thread size of the 4 screws that hold the starter switch to the starter. 1928 Starter 6v positive earth. Last edited by robnara; 01-26-2022 at 11:11 PM.