Source For 4mm Knurled Nuts ?

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration
Model T Ford Forum: Forum 2017: Source For 4mm Knurled Nuts ?
Top of pagePrevious messageNext messageBottom of page Link to this message  By Burger in Spokane on Wednesday, June 14, 2017 - 01:11 am:

Looking for period appearing brass knurled thumb nuts that fit the
metric spark plugs of the Z Head. Anyone have a ready source for
these ?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Keith Townsend ; ^ ) Gresham, Orygun on Wednesday, June 14, 2017 - 02:14 am:

Burger-
The straight side Champion X plugs use #5-40 thumb nuts. I got some #4-40 thumb nuts, drilled them and ran a 5-40 tap through them. The knurl is not quite right, but pretty close. You could probably find some thumb nuts that you could drill out and re-thread for the metric thread.

I'm curious, what plugs are you running?

: ^ )


Top of pagePrevious messageNext messageBottom of page Link to this message  By Burger in Spokane on Wednesday, June 14, 2017 - 02:51 am:

Let me look at them and post chamarrh. It is midnight and I need to hit the rack.

I can tell you this, I took an original T plug (with knurled thumb nut) and tried the
nut on my modern plug. Threading was slightly off and bound up about 2/3 of the
way down. I then took both plugs to my local hardware store and checked the threads
against their gauge. It came up as 4mm, or "M4".


Top of pagePrevious messageNext messageBottom of page Link to this message  By Brass TT on Wednesday, June 14, 2017 - 05:45 am:

Well same option applies. Just drill and retap or run some silver solder thru them, drill out and tap M4. They do make metric taps you know.
Or simply chuck some brass rod, bore and tap it, knurl it and groove and part off to suit.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Wednesday, June 14, 2017 - 06:47 am:

Well, McMaster-carr has them in zinc plated brass, see a bit down on this catalog page: https://www.mcmaster.com/#catalog/123/3230/=182ap3g

If you got to Ebay you can find them in unplated brass from UK but that'll take some more time shipping.

http://www.ebay.com/itm/Brass-Knurled-Thumb-Nut-High-Type-Grip-Knob-DIN-466-/322 522091809


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Wednesday, June 14, 2017 - 08:57 am:

I made my own as a class project, but Keith's suggestion of drilling and retapping would have been cheaper.


Top of pagePrevious messageNext messageBottom of page Link to this message  By steven miller on Wednesday, June 14, 2017 - 01:28 pm:

http://www.macsautoparts.com/ford_model_t/model-t-ford-spark-plug-nut-brass-for- replacement-spark-plugs-metric.html


Top of pagePrevious messageNext messageBottom of page Link to this message  By dale w on Wednesday, June 14, 2017 - 01:42 pm:

2.50 each.
https://www.restorationstuff.com/featured4.html


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Schultz_Sheboygan,WI on Wednesday, June 14, 2017 - 06:16 pm:

Burger, try this place I got mine there years ago.




https://brillman.com/product/m4s-brass-spark-plug-thumbnut/


Top of pagePrevious messageNext messageBottom of page Link to this message  By Chad Marchees _____Tax Capital, NY on Wednesday, June 14, 2017 - 07:43 pm:

You can get them right from 'Toms Engine Barn' Directly.

https://enginebarn.myshopify.com/

Here is his E-bay store:

http://www.ebay.com/itm/4-Brass-Replacement-Spark-Plug-Thumb-Nuts-M4-Thread-/270 661091075?hash=item3f04a87f03:m:mD7GHL_guC70vBtxwmHx6rQ&vxp=mtr



Here is another E-bay choice too.

http://www.ebay.com/itm/20-brass-4-mm-thread-x-0-7-pitch-7-16-OD-Autolite-Spark- Plug-Thumb-Nuts-/171821105977?hash=item2801560339:m:m0f6yTNgsmfPr4dhDXOXdFg


Top of pagePrevious messageNext messageBottom of page Link to this message  By Brass TT on Friday, June 16, 2017 - 06:26 am:

Roger- the nuts you linked to will work but I suspect they are not the profile /look he is seeking.
Chad- the nuts listed @ Toms engine barn are 8/32 thread, just there are "4' of them, but your alternative link is the correct item.


Add a Message


This is a private posting area. Only registered users and moderators may post messages here.
Username:  
Password:

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration