Help! Thread size for cage bolt.

[Malc]

I am just putting my IRS back together. I have mounted the brakes etc and am just in the process of attaching the cage. However when I went to tighten up the four cage top bolts, one did not grip and just turned. The other three are fine. I therefore need to get the thread helicoiled (I’ll robably get all four done at the same time). However I need to know the thread size. Can anyone help? I have asked a couple of parts companies but they don’t know. Once I have the thread size I can then ask companies if they have the right thread size in imperial. Just what I need as I was hoping to get it all sorted by tomorrow!! Any advice gratefully received.

[Malc]

Found! Managed to Google and found the size from XKs Unlimited in the States! For information the size is UNC 1/2 x 13. I’ve ordered a helicoil kit which should be with me tomorrow so hopefully all back on track. Might as well fit the new water pump while waiting!

[Mich7920]

Hi Malc,
You speak about the screw with tapered head base and with a hole through their head
You must have 8 screws like this.
I think i remember that the 4 for securing axle to rear frame have a larger diameter than the others but nealy the same length for 2 of them.
Don't you make a simple inversion ?
Mich