Author Topic: hex bolts  (Read 1392 times)

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dwebber

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hex bolts
« on: June 02, 2005, 02:20:17 PM »
what is the size of the metric hex bolts in the brake caliper (1974 750K)

Offline oldbiker

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Re: hex bolts
« Reply #1 on: June 03, 2005, 12:28:09 AM »
Hi, my parts book does not give a size, but I measured one on a spare caliper and it measures 10mm diameter by 73mm long under the head.

Offline bryanj

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Re: hex bolts
« Reply #2 on: June 03, 2005, 01:57:49 AM »
Its the thread form thats the problem! they are metric fine oddball
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Badboy

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Re: hex bolts
« Reply #3 on: June 12, 2005, 06:21:51 PM »
If they are the same that the CB500 uses they would be 1.25 mm in pitch x 10 mm dia. Japan uses 10mmX1.25 a lot in their machines,allthough lately I have seen other pitches. In 10mm dia. there is 1.25,1.5 1.75. In US made I see a lot of 10x1.5 sizes.
Generally ,a rig made in Japan would use 5X.90,6X1,8X1.25,10X1.25 ,12X1.25 and 1.5 etc. This varies some but in the years that I have worked on Japanese cars and so on this is what I have seen.

Offline Raul CB750K1

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Re: hex bolts
« Reply #4 on: June 13, 2005, 12:19:40 AM »
Sorry I've been very busy last week and simply forgot to check it out. I have to change the oil this week so I'll check the size of the allen wrench (I understood that was what you were asking)

Regards

Raul