Screws for Chuck Jaws?

[Dolan Brown]

I purchased some jaws for my Nova Chuck at an auction that were in a box lot with other stuff. One set of jaws were the deep type that have one of the screw holes that are about an inch deep. I did not get the screws and my existing screw will not go into the hole due to the size of the screw head.

Does anyone know where I can get a set of these screws?

[Jim Sebring]

This issue of too-large screw heads has come up in another forum. The flathead 6mm screws you can get in any hardware store work just fine since a work piece should never bottom out in the jaws, and will never touch the screws.

[Mark P. Brown]

If you want the screws to fit fully into the hole use a collet chuck and use a file to turn the edge of the screw cap down a bit. If you don't have a collet chuck a teflon lock nut will work in a jacobs chuck.
Mark

[Bob Hamilton]

Are you saying the screws that came with your Nova chuck have heads that are too big for the deep hole in the 75 mm. jaws? http://www.teknatool.com/products/Chuck_Accessories/75mm.htm

Those are the only Nova jaws I have for my SN2 and they came with the chuck. The screws that came with it do have a considerably smaller head than the screws on my Oneway chucks but I just assumed that was the size used for all Nova jaw sets.

If you can't get more from Teknatool (try Tim Geist: (304) 295-8166 or email to. Tvgeistmfg@aol.com ) then filing or grinding a bit off the edge of the heads may be your only option.

Take care
Bob

[Dolan Brown]

Problem solved.

The jaws I was talking about and didn't explain clearly were Oneway jaws with one of the holes about 1" deep. I discovered today that the screws from my NOVA SN2 chuck have smaller screw heads than the oneway screws, so I can use the Oneway jaws on my SN2 chuck using the NOVA screws. :D

Thanks for the responses.

[Leo Van Der Loo]

There are no Oneway jaws that have holes 1 inch deep to the best of my knowledge.

http://www.oneway.ca/chucks/accessories/index.htm

[Dolan Brown]

Leo I think you are correct. I was checking the jaws more closely this morning and I think this (http://www.woodturnerscatalog.com/store/Chucks___Teknatool___Teknatool_Spigot_Jaws___tekna _spigot?Args=)is the jaws that I have. Anyway my problem is solved - I have screws that work.

[Leo Van Der Loo]

Glad to hear you got the problem solved Dolan ;-))

[Ryan Baker]

Leo I think you are correct. I was checking the jaws more closely this morning and I think this (http://www.woodturnerscatalog.com/store/Chucks___Teknatool___Teknatool_Spigot_Jaws___tekna _spigot?Args=)is the jaws that I have. Anyway my problem is solved - I have screws that work.

On the jaw sets with recessed screw holes, the holes are VERY close in diameter to the screw heads. Sometimes there is a slight burr around the hole that makes it hard for the screw to go in. If you clean up the edge slightly, the screws will go in much easier. After you have them in once, you shouldn't have any more trouble.

BTW, you can buy sets of replacement jaw screws (from Teknatool) at your local Woodcraft or similar. A package is something like $8. You can find alternatives in various other places, but for that price you might as well have the real thing (and properly hardened instead of the hardware store junk). It's always good to have some spares around for those screws that disappear in the shavings at the worst possible time.

[Mike Minto]

dolan, i remember reading somewhere (here?) a discussion regarding whether or not chuck screws were hardened. i've been buying screws for my chucks at a local hardware store - unhardened. very cheap, but does anyone think they would be unsafe? thanks, mike