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08-03-2001, 08:14 AM | #1 |
Registered Member
Join Date: Feb 2001
Location: Delray Beach, Florida
Posts: 97
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Bolts and Nuts Measuring
Anyone know how to properly measure different grade bolts when trying to find replacements? Do you need a micro meter? I'm going through a restoration of my stang and want to get the exact bolts. I know you first need the correct grade but then there are the threads, the pitch and the underside and all that stuff.
Thanks...... |
08-03-2001, 09:51 AM | #2 |
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Join Date: Nov 1998
Location: Sugarland, TX USA
Posts: 161
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There are many grades of bolts but the identification is on the head. For most applications use SAE grade 5 which has three lines on the head. For Metrick 8.8 is a good grade.
The length of a bolt is measure not including the head. For pitch you need a pitch gauge or use a tap and die set and compare. There is a lot more involved in fasterners than this but if you have a particular application let me know and I can help. ------------------ 88 347, Twisted wedge heads,Comp Cams 224/230 cam, 1/4=10.523 @ 125.99, 60' = 1.472 |
08-03-2001, 10:14 AM | #3 |
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Join Date: Feb 2001
Location: Delray Beach, Florida
Posts: 97
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Thanks 8850!.... I recently removed the two bolts that held the gas tank up to the frame of the car. They are really rusted and I would like to get replacements since I am adding a new tank . On the top of the bolt it says 9.8 . I just don't know how to go about measuring these to get the exact replacements or even where to but them.
Thanks again. |
08-03-2001, 12:18 PM | #4 |
Registered Member
Join Date: Nov 1998
Location: Sugarland, TX USA
Posts: 161
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That is a metric bolt. Sears Hardware carries metric bolts.
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08-03-2001, 01:34 PM | #5 |
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Join Date: Oct 1998
Location: Rogers, MN
Posts: 2,089
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You go to a hardware store and they have little gauges for measuring them. The person at the hardware store should be able to help. A local hardware store like Ace would be best for this type of bolt. I was able to find stainless steel 10.6s for my suspension.
------------------ 351W 89 Mustang GT Convertible |
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