Push bolts

[mdstuart]

Where do I get three push bolts to add to a wooden mirror cell?

I think they have metal circular threaded attachments..

What do I look for on the internet to find the?

My new 14 inch has pull screws and springs but would hold collimation better with puch bolts added IMHO..

Mark

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[Horwig]

I've just used push bolts on my 16 inch Newtonian, Made some from normal cap head bolts, but with dome headed nuts for the contact points, got mine from b&q, but screwfix amongst others keep them.

Hope this is of some use.

Huw

[mdstuart]

Thanks mate.

i decided in the end to get some threaded inserts which I think I can work with....

mark

[mdstuart]

Threaded inserts worked really well.

Using the wing nuts locks the push bolt perfectly.

Mark

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