No 4 Mk2 |
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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Just so I understand about the knurled end. What diameter is the knurled head? Also the flats you are talking about. Does the end result look like you have a flat tire on top and bottom? (Sorry for the weak description!)
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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Its going to depend on how your supplier makes them.
Mine (I don't remember from who) was about 3/4" diameter & 1/4" thick. I made the flats at 3/8" from center so they were more like a bar with knurled ends. like this from here. (pardon my rubbish Photoshop quick 'n dirty rendering)! https://www.berger-tools.co.uk/Hand_Knobs_Star_Knobs_Wing__Knurled_Thumb_Screws__Nuts/Din653_Flat_Knurled_Thumb_Screw_Steel_Blackened/ |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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Thanks Shamu. Looks just like my mind envisioned you description!
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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Shamu. Couldn't source anything in town with the knurled knobs! Went with the head studs (6mm x 1/2"). Tightened down with the metric Allen wrenches and Red locktite. Braved the cold (-30 with the wind) wrapped off a box of 174g FMJ. Not a wobble! Solid like a rock! (Not shooting at targets, steel plates @ 100yds, so group is unknown, only the ringing off the ice cold steel!)
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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Another way is to use a Dremel to cut a slot in the head of a hex bolt & weld/silver solder/braize a slim, flat rod to give the "wings" you use for torque.
Red LocTite works, but is kinda permanent. That removes a nice feature of the Cad Technic, the ability to whip the scope off it if becomes unusable. (fog, snow, mud, raindrops, condensation & so on) |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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That is sage advise. It will be my next project, come warmer weather. We have a old deisel injector mechanic in town that can silversolder anything to anything! Thanks! Never thought of that!
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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The bolts with the big, flat knurled heads probably won't be found in a local hardware store.
On the intwerweb however, just about everything is available. |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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I haven't completely stripped my No4 Mk2 down yet. The screw that I assume holds the trigger assembly in place (the one that is a noticeable addition to No4 Mk1's) how does this come out? I'm assuming it has to before removing the hardware from the furniture. On reassembly, is it hard to line up? Thanks!
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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Its a through bolt with a slotted nut on the other side. You need a slotted screwdriver to stop the nut turning then just unscrew normally.
The "hanger (bracket) for the trigger is cut in a large "U" shape so its not really tight fitting, more of a slight crush fit of the wood to the sides of the bracket. The screw doesn't hold the bracket, that's brazed to the frame (receiver) |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Canuck
Special Member Donating Member Joined: January 17 2012 Location: Agassiz BC Status: Offline Points: 3535 |
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In case anyone here needs that cross bolt/nut, Scott Stonehill manufactures them and does a very good job at it. I ordered a few last year from him.
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Castles made of sand slip into the sea.....eventually
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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Scott does nice work, he made me the mount bolts for My PH-5A!
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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Stupid question then. Watch is that screw there for?
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Zed
Special Member Donating Member Joined: May 01 2012 Location: France Status: Offline Points: 5585 |
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The screw replaces the metal strap arrangement on the No4Mk1 rifles. Basically it just holds the two sides together to stop them spreading out under recoil conditions.
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It's nice to be important, but it's more important to be nice!
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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Thanks for the help!
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