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I'm putting back together my EG/DC with titanium hardware for the front subframe, motor mounts, front & rear arms. Here is my list if it helps anyone. I bought my parts from pro-bolt unless noted. Everything is a flanged hex head bolt unless noted.
MT = motor mount and location (P, D, R)
SF = front subframe
RTA = rear trailing arms (D&P)
TC = trans case
RTA M10 x 1.25 x 30MM, QTY (4)
RTA M10 x 1.25 x 60MM, QTY (4)
RTA M10 x 1.25 x 80MM, QTY (4)
RTA M10 x 1.25 x 90MM, QTY (2)
MT-R/SF M14 x1.5 X 110MM, QTY (3), Ti64.com
SF M14 x 1.5 x 60MM, QTY (2), Ti64.com
SF M14 x 1.5 x 120MM, QTY (2), Ti64.com
SF M6 x 1.0 x 20MM, QTY (2)
MT-D M10 x 1.25 x 60MM, QTY (4)
MT-D M10 flat washer, QTY (4)
MT-D M10 flanged nut 1.25, QTY (2)
MT-D M12 x 1.25 x 120MM, QTY (2) Ti64.com
MT-D M12 flanged nut 1.25, QTY (2)
MT-P M12 x 1.25 x 100MM, QTY (2) Ti64.com
MT-R M12 x 1.25 x 100MM, QTY (1) Ti64.com
MT-R M14 x 1.5 x 70MM, QTY (2) Ti64.com
MT-R M14 flat washer, QTY (2) Ti64.com
MT-R M12 flat washer, QTY (1)
TC, M8 x 1.25 x 65, QTY (2)
TC, M8 x 1.25 x 40, QTY (15)
TC, M10 x 1.25 x 25mm, QTY (1)
TC, M8 x 1.25 x 25MM, QTY (1)
TC, M6 x 1.0 x 20MM, QTY (2)
Door to hinge & hinge to body, M8 x 1.25 x 20MM, QTY (16)
Front compliance arms bushing related parts
M14 x 1.5 x 60MM , QTY (2)
M14 x 1.5 x 35MM , QTY (2)
M14 x 1.5 x 35MM, QTY (2)
51398-SR3-000, QTY (2) Honda washer, odd size
51399-SR3-010, QTY (2) Honda washer, odd size
Upper shock fork
M10 x 1.25 x 45MM, QTY (2)
Front compliance arms
M12 x 1.25 x 75MM, QTY (2)
M10 x 1.25 x 45MM, QTY (2)
M12 x 1.25 flanged nut, QTY (2)
M8 x 1.25 flanged nut, QTY (10)
M8 x 1.25 x 15MM, QTY (4)
K series starter
M12 x 1.25 x 85, QTY (1)
M8 x 1.25 flanged nut, QTY (1)
90027-PNA-000, QTY (1) Honda specific bolt
Post mount passenger side
M10 x 1.25 x 75MM, QTY (3)
M12 x 1.25 x 60MM, QTY (3)
K series exhaust studs
M10 x 1.25 x 42MM, QTY (5) Ti64.com
M10 x 1.25MM flanged nut, QTY (5)
K series intake studs
M8 x 1.25 x 45MM, QTY (1) kit of eight from speedfactory includes flanged nuts.
This is my list for now to rebuild my car. As I continue to purchase, I will update it. Fwiw, I'm $2k+ into this so far if you decide to do this. If you find a cheaper source, please post it for others.
This thread (pun intended) is to document the most common, Honda thread size and fastener dimensions. I originally posted this forever ago, but figured I would revise the first post in this thread with updated information. If you wish to read the original contents of this post, which were last edited March 6th, 2007 (almost EXACTLY 15 years ago!) - here are the original, original post contents:
In general, Honda uses about 4-5 different sized threads. Honda fasteners are technically "flange head socket cap screws". Almost all of them are metric grade 10/10.9. Some are even Metric grade 12.9.
Note, when most mechanics say "remove five, 14mm bolts". When they say this, they are referring to 5 bolts which they need to use a 14mm socket on. The part that is actually 14mm is the "head" of the bolt.
When hardware stores, fastener retailers, engineers, etc refer to "14mm bolts", what they are referring to are bolts that have a thread or bolt diameter of 14mm.
M6x1.0 - most 10mm head bolts.
M8x1.25 - most 12mm head bolts.
M10x1.25 - most 14mm head bolts.
M12x1.25 - most 17mm head bolts.
M14x1.5 - most 19mm head bolts (but these can also be 17mm)
M16x1.5 - can have 19mm, 21mm, or 22mm heads?
Honda rarely deviates from these thread pitches, except for fasteners such as differential ring gear bolts, connecting rod bolts -- and other fasteners that are internal to the engine/drive train.
There are also some things that are deliberately abnormal, such as the bolts that are used on the steering column knuckle. I've seen where those are M11x1.25. -- Which is VERY similar to 7/16-20. Be careful not to mix these up.
Here are links to McMaster-Carr for various nuts that I have found in their catalog that match what Honda uses. They are Grade 10 / 10.9, flanged, and importantly, they have the same size head that Honda uses. None of that "13mm socket" on M8x1.25 crap. Ugh, so annoying! lol. I have also selected ones that are zinc plated.
Obviously, these aren't the only possible options. Additionally, you should know that Honda uses distorted thread lock nuts for things like suspension fork bolts, sway bar end links. These distorted thread nuts are ones that Honda typically says to replace in the service manual. Here are links to McMaster-Carr where you can purchase equivalent, distorted thread lock nuts.
New to the forum, sorry if it was posted, I didn't see it, Any Idea what the bolts for the driveshaft center support on a 2004 crv are? I doubt it'll matter but It's an ex and automatic, sadly I don't have them to put a wrench on as reference, I think it was a 14, no guarantee though
Re: Common Honda Bolt thread pitch size dimension
