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Washer Tank Bolt Size

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Old July 26th, 2021, 09:08 PM
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Washer Tank Bolt Size

Can someone give me an idea of the correct bolt size for the washer jar for a 70 442.

I see in the assembly manual that .312 diameter hole or roughly 5/16th, and screw part number 9419380.

I assume it is 3/8 but how long?
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Old July 27th, 2021, 04:55 AM
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If the hole is 5/16 then a 3/8 bolt will be too big. So the bolt either has to be 1/4 or 5/16..
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Old July 27th, 2021, 09:11 AM
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For the 1970 washer jar, Lansing used three 3/16" x 3/4" sheet-metal-type screws with 3/8" hex head, black oxide. Not sure what other assembly plants used.

Perhaps the 0.312" dia hole was a clearance hole in the inner fender.
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Old July 27th, 2021, 09:31 AM
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Old July 27th, 2021, 10:10 AM
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That be the one!
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Old July 27th, 2021, 12:05 PM
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Check your nearby ACE Hardware, they carry a huge assortment of hardware.
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Old July 27th, 2021, 02:39 PM
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Perfect, thanks everyone!

Yes the .312 diameter hole is in the wheel well. I should have mentioned that.
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Old July 27th, 2021, 06:44 PM
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Originally Posted by nicks1966
These are the correct sized screws....1/4" (#14) threads. You could probably go w/a 5/8" thread length if you though the 3/4" was a bit too long.
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