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Jeff K
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« on: December 29, 2011, 06:20:35 AM » |
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I want to order some new rotor bolts I believe they are 6 X 17 but I don't know the thread pitch.
Wanted to get them on this order, but I may have to wait till I get home to check the pitch.
Any help?
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Jess from VA
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« Reply #1 on: December 29, 2011, 07:22:51 AM » |
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Can't you find this on an HDL parts schematic?
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Chrisj CMA
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« Reply #2 on: December 29, 2011, 07:45:50 AM » |
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Here is the PN fron the HDL site. I have never known the pitch of the threads of a bolt I have ordered for the bike........always worked fine.
BOLT, DISK (6X17)
90105-KN5-000
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« Last Edit: December 29, 2011, 07:50:03 AM by Chrisj CMA »
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Jeff K
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« Reply #3 on: December 29, 2011, 07:59:55 AM » |
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$2.50 per bolt from Honda. Or, a bag full of SS "samples" from my bolt supplier. $30 for rusty bolts, or free SS bolts... Hmm? What to do, what to do? ;-)
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Jess from VA
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« Reply #4 on: December 29, 2011, 08:03:36 AM » |
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Take one of your old bolts to the hardware with you and eyeball them.
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Jeff K
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« Reply #5 on: December 29, 2011, 08:07:20 AM » |
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I have a thread gauge at home. I forgot to check them last night and I wanted to get them ordered today. I'm guessing they are 6 X 17 X 1mm
Most Honda's seem to be that size.
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04strider
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« Reply #6 on: December 29, 2011, 03:45:32 PM » |
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5mm screw is 0.8mm pitch
6mm screw is 1mm pitch
8mm screw is 1.25mm pitch
10mm screw is 1.5mm pitch
12mm screw is 2.0 pitch
These are the standard pitches used for most fasteners found on Japanese bikes, but there are some finer pitches used for higher torque applications.
Remember, this is the nominal diameter of the screw, not the size of the wrench that fits the hex. Also, the proper size bit to drill a hole for a metric screw is the nominal diameter - the pitch. ex: 6mm screw, drill a 5mm hole before tapping. The tap will have M6x1 printed on it.
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old grouch
Member
Posts: 387
If it aint broke, don't fix it!
Colorado Springs, CO
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« Reply #7 on: December 29, 2011, 04:20:51 PM » |
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If you find some I sure would like to know all about them. I have looked long and hard and can't find any with the same size head. Found the right size & pitch. But not the same length or the same size head. Head is always smaller & uses a smaller hex wrench. Can't find them in any style, not plated, black, SS or chrome. I think it is a proprietary bolt? Sort of like the I/S headlight bulb? Stan
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 Don't float thru life, MAKE WAVES! 09/11/01 NEVER FORGET! |
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Ricky-D
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« Reply #8 on: December 30, 2011, 09:24:43 AM » |
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Take one of your old bolts to the hardware with you and eyeball them.
Heck, you could just remove one, from either rotor and use that for finding new bolts. I don't think the head design will matter much since they are not recessed. Happy New Year |
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2000_Valkyrie_Interstate
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Tropic traveler
Member
Posts: 3117
Livin' the Valk, er, F6B life in Central Florida.
Silver Springs, Florida
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« Reply #9 on: December 31, 2011, 07:31:00 PM » |
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I think the heads on the rotor bolts are the way they are to be low, so they don't hit while the rotor rotates. Also they need to be of sufficient hardness.
Metric bolts thread "pitch" is distance between the threads.
SAE {American} thread "pitch" is threads per inch.
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'13 F6B black-the real new Valkyrie Tourer
'13 F6B red for Kim
'97 Valkyrie Tourer r&w, OLDFRT's ride now!
'98 Valkyrie Tourer burgundy & cream traded for Kim's F6B
'05 SS 750 traded for Kim's F6B
'99 Valkyrie black & silver Tourer, traded in on my F6B
'05 Triumph R3 gone but not forgotten!
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Jeff K
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« Reply #10 on: December 31, 2011, 07:44:29 PM » |
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If you've ever removed and installed brake rotors you know they are about as hard as a 2 year old marshmallow.
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04strider
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« Reply #11 on: December 31, 2011, 10:09:15 PM » |
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Anytime you mess with metric hardware it is important to understand the grade system. On something like a brake rotor, it is important to replace with the correct grade. Metric screws will typically be 8.8, 10.9, or 12.9 with the higher the grade number, the higher the strength. Socket head screws normally are higher grade than hex screws. The grade number will be stamped into the top of the head. This is also an easy way to determine if a screw is SAE or metric.
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Jeff K
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« Reply #12 on: December 31, 2011, 10:29:54 PM » |
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Anytime you mess with metric hardware it is important to understand the grade system. On something like a brake rotor, it is important to replace with the correct grade. Metric screws will typically be 8.8, 10.9, or 12.9 with the higher the grade number, the higher the strength. Socket head screws normally are higher grade than hex screws. The grade number will be stamped into the top of the head. This is also an easy way to determine if a screw is SAE or metric.
And button head screws have the least amount of strength. Oddly enough. |
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Ricky-D
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« Reply #13 on: January 01, 2012, 07:13:32 AM » |
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Simply due to the number of bolts holding the rotor and their size I feel that any standard bolt you can find will suffice. The hardness of the bolt in that application is of little importance.
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2000_Valkyrie_Interstate
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