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Old 10-06-2018, 03:06 AM   #1
Hymnalysis
 
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Default The Bolts (Help Me Find A Match)

What is the size and thread pattern or whatever of the 12mm head bolts that hold the bumper on? I need some of that exact thickness but longer to adapt my 93 SE Bumper to my 96 XE. The brackets are spaced just a a little farther than they oughta be and a longer bolt is what I need. How do I find bolts with that thread pattern or whatever that are just longer?
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Old 10-06-2018, 04:28 AM   #2
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take one of the bolts to a hardware store and match it up to find out the thread, than look for a longer bolt
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Old 10-06-2018, 03:25 PM   #3
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Quote:
Originally Posted by Hymnalysis View Post
What is the size and thread pattern or whatever of the 12mm head bolts that hold the bumper on? How do I find bolts with that thread pattern or whatever that are just longer?

Typically on our trucks, bolts that take a 12mm wrench size have thread 8.0mm x 1.25mm. These are JIS standard (Japanese) parts.


Now stores like Ace Hardware stock a lot of metric bolts and nuts, but note that most of what you'll find at places like that would take a 13mm wrench size for the 8.0mm x 1.25mm thread bolts and nuts. Typically, Ace will have little drawers with JIS bolts though. Or go to a Japanese vehicle dealer like Nissan, Mazda, etc., but not so sure they'd even stock those.


And once you figure the length you need, there's always the Internet https://www.google.com/search?source...10.VMpm2XnqSWE
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Old 10-06-2018, 04:42 PM   #4
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Quote:
Originally Posted by Cusser View Post
Typically on our trucks, bolts that take a 12mm wrench size have thread 8.0mm x 1.25mm. These are JIS standard (Japanese) parts.


Now stores like Ace Hardware stock a lot of metric bolts and nuts, but note that most of what you'll find at places like that would take a 13mm wrench size for the 8.0mm x 1.25mm thread bolts and nuts. Typically, Ace will have little drawers with JIS bolts though. Or go to a Japanese vehicle dealer like Nissan, Mazda, etc., but not so sure they'd even stock those.


And once you figure the length you need, there's always the Internet https://www.google.com/search?source...10.VMpm2XnqSWE
I have seen JIS bolt kits for sale at auto parts stores as well.
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Old 10-06-2018, 04:44 PM   #5
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Also if it is a bolt that uses a nut you can use a SAE bolt and nut, doesn't have to be a Metric bolt
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Old 10-06-2018, 08:58 PM   #6
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Originally Posted by ahardb0dy View Post
Also if it is a bolt that uses a nut you can use a SAE bolt and nut, doesn't have to be a Metric bolt

Blasphemy !!! Except that I did similar to get carriage bolts with "squares" that fit into the smaller square holes in my replacement B2200 truck bumper.
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Old 10-07-2018, 12:49 AM   #7
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using an SAE nut and bolt on these trucks might make one melt to pieces LOL
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Old 10-11-2018, 05:19 PM   #8
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I hate hearing this when people use SAE on a metric truck. When doing all my bolt on parts to do my v-8 swap, I first got SAE as thats what Im used to doing for a project such as this. Then after I got everything home, I returned it all and bought the Metric bolts so I wouldn't get pissed when removing bolts down the road. Just makes good sense.
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