Bolt size

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Dec 17, 2008 | 09:16 PM

rthawk1

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Instructor

Joined: Dec 2005

Posts: 116

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From: Snellville Georgia

Bolt size

Some how or another I am missing bolts for my 72 bumpers. I am only missing them because I sent the bumpers for re-chroming back in May....and the car is coming out of the body shop this week. I forgot where I placed the damn things.

What is the best way to find the size of a particular bolt and thread pattern? The AIM show the bolt number 9419077 for the front bumper. There is also a 9419075 which I presume is a different size.

Any help or direction is appreciated.....RT

Dec 17, 2008 | 10:00 PM

LT-1 kid

Melting Slicks

Joined: Sep 2007

Posts: 2,149

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From: cary Il

get a tap and dye set and use it to determine the size and thread, most are 3/8 and 7/16.

Dec 17, 2008 | 10:32 PM

mapman

Melting Slicks

Joined: Aug 2001

Posts: 3,050

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From: Wichita KS

Quote:

Originally Posted by rthawk1

I don't have a part number i.d. so I don't know the specific bolt you are referring to. However, the following bolts were used on the 1968-1972 Front Bumper;

Bolt: 7/16, 14 tpi, 1.25" long
Bolt: 1/4, 20 tpi, 5/8" long
Bolt: 3/8, 16 tpi, 2" long
Bolt: 1/2, 13 tpi, 1.5" long

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