Differential cover bolts
03-23-2009, 07:16 PM
#12
JK Enthusiast
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That gold color of plating you see on the bolts is Zinc, if you want them to stay that gold color for a longer time clear coat the heads after you install them. Just a thought!!!
03-24-2009, 05:00 AM
#13
JK Freak
Thread Starter
I brought one included with the cover to work, they are definitely 5/16-18 threads overall length on a set of calipers is 1.060" and thread length appears to be .851-.855", so 1 inch in length.
Thanks for the clear coat advice.
Thanks for the clear coat advice.
03-24-2009, 07:31 AM
#14
JK Freak
Thread Starter
I got a bag of 100 for 11 bucks, grade 8, 1" length, they're too long compared with the ones that came with the Riddlers. About .13-.14" longer overall. Going to bring them back and try to get something shorter.
07-03-2009, 09:19 AM
#16
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I've heard since grade 8 bolts are much harder than grade 5, they are more susceptible (spelling?) to shearing, like say if a bolt head lands on a rock the head will shear off, where as grade five will give a little. Now if the grade 8 bolts are countersunk and protecting, that isn't an issue, but I've always used grade five for diff covers and sliders, at least on the exposed bolt heads. You could always use grade 8 on all but the bottom few bolts
Just a thought
Just a thought
07-03-2009, 09:38 AM
#17
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I've heard since grade 8 bolts are much harder than grade 5, they are more susceptible (spelling?) to shearing, like say if a bolt head lands on a rock the head will shear off, where as grade five will give a little. Now if the grade 8 bolts are countersunk and protecting, that isn't an issue, but I've always used grade five for diff covers and sliders, at least on the exposed bolt heads. You could always use grade 8 on all but the bottom few bolts Just a thought
Just a thoughthttp://www.rockcrawler.com/techrepor...ners/index.asp
Thanks for posting the link
07-03-2009, 01:31 PM
#19
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You're very welcome. A member of the Jeep club I belong to (who also happens to be an engineer) sent me the link when I was asking some questions about why Warn specifies Grade 5 bolts for mounting winches.
The answer seems to be "Because they're good enough"...but I tend to lean in the direction of overkill when it comes to picking out bolts, recovery gear, and armour.
The answer seems to be "Because they're good enough"...but I tend to lean in the direction of overkill when it comes to picking out bolts, recovery gear, and armour.
07-06-2009, 01:32 AM
#20
JK Super Freak
I've also found a site (use-enco.com) that sells button head cap bolts in the size (i think) i need. I've also order them in a Grade8. This is what I was originally looking for.
Button Head Cap Screw - Socket Products Type: Button Head Cap Screws Thread Size: 5/16-18 Length Under Head: 7/8 Material: Alloy Steel - Grade 8 Finish/Coating: Black Oxide
Type: Button Head Cap Screws
Thread Size: 5/16-18
Length Under Head (Inch): 7/8
Material: Alloy Steel
Material Grade: Grade 8
Key Size (Inch): 3/16
Finish/Coating: Black Oxide
Manufacturer Part Number: 64060
Button Head Cap Screw - Socket Products Type: Button Head Cap Screws Thread Size: 5/16-18 Length Under Head: 7/8 Material: Alloy Steel - Grade 8 Finish/Coating: Black Oxide
Type: Button Head Cap Screws
Thread Size: 5/16-18
Length Under Head (Inch): 7/8
Material: Alloy Steel
Material Grade: Grade 8
Key Size (Inch): 3/16
Finish/Coating: Black Oxide
Manufacturer Part Number: 64060