New tang screw....TIMING IT IN
Added 2022-01-04 19:58:57 +0000 UTCEver wonder how custom gun screws are timed to torque up just as the slot aligns with the long axis of the gun? This is how I do it, right, wrong, or indifferent
1. The screw is fabricated to length; Leave the head and threads long enough to work with. Remember, we have to hang onto this somehow! Ensure the countersinks and bottom metal threads are what you want, then fully torque to the need. Get it tight.
2. Cut, grind the bottom to just above flush. Leave a slight dome on this end, makes it easier to find the hole on reassembly.
3. Scribe a ring around the head. Punch on the slot axis just a little above this scribe line. We want the punch dimples to be removed as the slot is cut.
4. Remove from the setup and part the screw off just above the punch marks. Leave the marks in play for the next step. We will file off all the unwanted stuff once the slot is cut...
5. Cut, file, laser, blast in the slot. Spin the fastener in the lathe or drill motor and clean up the head. File down to the scribe line, then polish
6. In this case, I fire blued, but anything that works for you works for me.
Well, there you have it. You may notice that the head looks TOO good, and has to be knocked back a tad to look correct. A judgement call for the on site smith......
mark
Comments
When I can, well, yes. But not when we have to pull a little torque, eh?
2022-01-05 13:26:25 +0000 UTCYou mean you don't just epoxy it in place? Huh.... π€ͺπ
Bruce Brodnax
2022-01-05 12:33:24 +0000 UTCThanks for making us all look smarter in front of our friends when we pull that trick out of the bag lol.
Ben Dean
2022-01-05 02:24:44 +0000 UTCThat is so awesome
2022-01-04 23:43:24 +0000 UTCThey thought they were screwed, but they were not, now they are, but in a good way, happiness thanks to Mark.
Eugene Luder
2022-01-04 22:48:49 +0000 UTCRegular carbon steel, nothing special. I buy the odd 1/2 x6 inch bolt and cut that down.
2022-01-04 21:07:54 +0000 UTCany special metal you use for the screws?
2022-01-04 21:04:02 +0000 UTCC.D.O. OCD in alphabetical order, the way it's SUPPOSED to be...............................
2022-01-04 20:43:04 +0000 UTCDang. I had no idea.
John1911.com
2022-01-04 20:36:13 +0000 UTCI honestly always wondered how that's done. Thanks for showing us, Mark!
2022-01-04 20:06:57 +0000 UTCGreat news to all of the folks with a.d.d. that need all the screw heads to be allined..
Mike Hubler
2022-01-04 20:04:56 +0000 UTCMakes perfect sense.
Alden Skinner
2022-01-04 20:04:39 +0000 UTC
