The Ford Barn

Duke · 04-15-2019, 10:59 PM

Hi,
Are the screws that hold the striker to the door post and the ones that hold the mid post dovetails 1/4 course thread? Mine are not in the best condition and want to make sure on the thread before I chase it with a tap.
Thanks

jw hash · 04-16-2019, 02:30 AM

what body do you have. some are 1/4-20 and some are wood screws.

rotorwrench · 04-16-2019, 08:39 AM

Good quality tap & die sets generally have a thread gauge that can be compared for thread per inch. I believe a person can purchase them separately.
https://www.amazon.com/Brown-Sharpe-.../dp/B005318DN2

monto · 04-16-2019, 05:33 PM

I think Henry liked and used NF more than NC..

Terry, NJ · 04-16-2019, 07:28 PM

Just a minute! Henry used a seldom used thread size in the model A. It is the 12-24. A little bit smaller and the pitch is a little bit finer than a 1/4-20. But they appear very similar when seen casually. They are not interchangeable. 12-24 used to be fairly common but now they're almost obsolete.
Terry

Duke · 04-16-2019, 08:50 PM

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It is a 29 coupe. I was afraid that it would be a special thread. I guess 1/4 20 I bought today is not going to work. Is the repro hardware the correct thread?

Chuck Sea/Tac · 04-16-2019, 11:38 PM

You don’t want to use a reg tap anyway. You want a cleaning tap, or make one by cutting 4 slots lenghtwise. I bought a set of clean out taps and dies on amazon, and they are great.

BILL WILLIAMSON · 04-17-2019, 05:12 PM

Even cheap tap & die sets have a thread guage!
Bill W.

04-15-2019, 10:59 PM	#1
Duke Senior Member Join Date: May 2010 Location: Vernon, BC Posts: 202	Door striker screw thread? Hi, Are the screws that hold the striker to the door post and the ones that hold the mid post dovetails 1/4 course thread? Mine are not in the best condition and want to make sure on the thread before I chase it with a tap. Thanks

04-16-2019, 02:30 AM	#2
jw hash Senior Member Join Date: May 2010 Location: Auburn Washington Posts: 2,552	Re: Door striker screw thread? what body do you have. some are 1/4-20 and some are wood screws.

04-16-2019, 08:39 AM	#3
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,426	Re: Door striker screw thread? Good quality tap & die sets generally have a thread gauge that can be compared for thread per inch. I believe a person can purchase them separately. https://www.amazon.com/Brown-Sharpe-.../dp/B005318DN2

04-16-2019, 05:33 PM	#4
monto Senior Member Join Date: Apr 2015 Location: NH Posts: 182	Re: Door striker screw thread? I think Henry liked and used NF more than NC.. __________________ '30 Coupe

04-16-2019, 07:28 PM	#5
Terry, NJ Senior Member Join Date: May 2010 Location: Bucks Co, Pa Posts: 3,740	Re: Door striker screw thread? Just a minute! Henry used a seldom used thread size in the model A. It is the 12-24. A little bit smaller and the pitch is a little bit finer than a 1/4-20. But they appear very similar when seen casually. They are not interchangeable. 12-24 used to be fairly common but now they're almost obsolete. Terry

04-16-2019, 08:50 PM	#6
Duke Senior Member Join Date: May 2010 Location: Vernon, BC Posts: 202	Re: Door striker screw thread? Sponsored Links (Register now to hide all advertisements) It is a 29 coupe. I was afraid that it would be a special thread. I guess 1/4 20 I bought today is not going to work. Is the repro hardware the correct thread?

04-16-2019, 11:38 PM	#7
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,354	Re: Door striker screw thread? You don’t want to use a reg tap anyway. You want a cleaning tap, or make one by cutting 4 slots lenghtwise. I bought a set of clean out taps and dies on amazon, and they are great.

04-17-2019, 05:12 PM	#8
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Door striker screw thread? Even cheap tap & die sets have a thread guage! Bill W. __________________ "THE ASSISTANT GURU OF STUFF"