I'm going to try to get some 12.9 bolts as I have the above, it's got to be my current bolts not being upto the task, just had a look and they are 8.8 bolts
- Thread starter richard s
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8ob
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500e
Always buy fire insurance a flood is a hard start
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They will Cant/tip if the grip length is to long, 7mm drill is correct for 5mm
An Umbraco set screw will not break 2 good washers & a quality nut not cheese type
An Umbraco set screw will not break 2 good washers & a quality nut not cheese type
| Diameter (d) | Length (L) | Body Diameter (D) | Head Size (B) | Flange Size (S) | Drill Size | Grip Range | Torque Testing (Nm) | Setting Effort (N) |
|---|---|---|---|---|---|---|---|---|
| M5 | 13.5mm | 6.9mm | 9.5mm | 1.5mm | 7.0mm | 1.5 - 4.0mm | 10.5 | 12.250 |
| M5 | 16.0mm | 6.9mm | 9.5mm | 1.5mm | 7.0mm | 4.0 - 6.5mm | 10.5 | 12.250 |
Hi, what do you mean by grip length too long, is that the part that crushes
500e
Always buy fire insurance a flood is a hard start
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Have a read of the chart #26 if the crush part of the nut is to long it can distort and tip & not grip correctly, never used hex ones, serated bodys help to lock them in. They do countersunk with serated back to csink angle as well as body.
The grip range is important, hitting it would loosen grip I would say
I put a dab of locktite bearing fit on, belt and bracers.
The grip range is important, hitting it would loosen grip I would say
I put a dab of locktite bearing fit on, belt and bracers.
Thanks, I have read the chart, I didn't realise you could scroll across at 1st, I measured the rivnut and they are 14.5mm total length, the crush/hex area is 6mm, the hitting is to drive them in prior to tightening as the hex part doesn't go in when drilled to 7mm, I'm gonna try to crush one without installing to see what happens.
500e
Always buy fire insurance a flood is a hard start
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@richard s the crush /clamping aria is not for the Hex it is the part that collapses on tightening to hold the nut assembly you need to look at the metal thickness look for the correct Grip Range.
The serrated body will give you some additional anti rotation help especially with the Lock-Tite, Personally I think you were sold the wrong product as @8ob said hex insert hex hole
The serrated body will give you some additional anti rotation help especially with the Lock-Tite, Personally I think you were sold the wrong product as @8ob said hex insert hex hole
Thanks for all you're help guys, today I decided not to continue with the hex ones and went and got some round ones with a serrated body, while I was there I decided I wasn't gonna faff about anymore so I got an installation tool that said for Ali,steel and stainless , karma then got me for **** balling about and I banged the underneath of my car on a kerb resulting in my back box breaking off and me laying on a cold wet floor wrestling it off
I can now laugh but at the time , doesn't help that I now have 1leg and have gotten fatter so access under a car in these instances isn't how I remember it being
