Chassis bolt bosses?

[caduceus]

I need to procure some replacement 'bosses' (?) for the chassis. I assume that's what they're called? (pic below)



My local fixtures place doesn't sell them. Can someone kindly point me in the direction of where I should start looking please? I have looked on Google but no joy. Maybe they're not called 'bosses'
Are they all M10 internal diameter?

Cheers
Cad

[jojackson4]

There just bits of pipe / tube slotted into holes drilled into the framework
Cut and welded into place
HTH

[J400GED]

caduceus said:

I need to procure some replacement 'bosses' (?) for the chassis. I assume that's what they're called? (pic below)



My local fixtures place doesn't sell them. Can someone kindly point me in the direction of where I should start looking please? I have looked on Google but no joy. Maybe they're not called 'bosses'
Are they all M10 internal diameter?

Cheers
Cad

Cad, the rear one, I believe, is a plain tube for the front mount of the lower rear wishbone. The outboard one is threaded internally to suit the forward outboard seatbelt mount - this is not a "standard" M10 thread.
If I needed these specific parts, the first place I would call is Richard Thorpe at RTRacing on 0114 281 7507. They build chassis from scratch.

[Engineer1949]

Good advise ged the description is spot on the thread rate is 7/16th unf

John

[Engineer1949]

Good advise ged the description is spot on the thread rate is 7/16th unf

John

[caduceus]

Thanks chaps