Les pas de vis chez crosman sont..... americains
Il y a donc un mélange assez subtil....
Imperial, unifié.....que sais-je....
Les anglo saxons en rigolent eux même....
ici c'est donné en fractions d'inches
Le pb, c'est que ni sur le 1377 ni sur le 2240 il n'y a de pas de vis sur les leviers d'armement : ils sont monoblocs et emboités dans la culasse plastique.....
après avoir vu ta photo, je vois que c'est un levier de 2300T...
Pas de bol, il n'y pas le filetage dans ma liste....
C'est PAS métrique, c'est SÛR et CERTAIN....
Voici l'extrait d'une conversation au sujet des "pas":
Shaun:
Sorry if this sounds a dumb question, but what type of thread are the screws used ? UNF or different ?
Thanks
Good question Shaun :-*
I never really thought about it until you mentioned it, since I always use taps and dies for the smaller threads. I just grabbed a 8-32 tap and all it says is Greenfield 8-32 NC G/2 HS and then a serial number.
NC is the type of tap, G/2 is most likely the tolerance (as in UNF), but I am not 100% on that (though I should be) HS is he material the tap is made from, which in this case is High Speed Steel.
Whenever I single point threads on the lathe, I use the UNF 2A specs from the machinist handbook and have always had a good match up to tapped holes. I don't think you can go to wrong if you go with the UNF specs.
I will do a bit more research and see what I can come up with. In the mean time, maybe someone else will chime in with the info.
Rich
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Offline Buster
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #14 on: March 29, 2015, 10:22:04 PM »
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Recently I asked a friend who works in a stockist of nut and bolts, I gave him a selection of the standard screws out of the gun, to see if he could get me some new hex type ones instead of the standard slot ones, which he brought back and said he couldn't find a match, without costing too much. He says that he thinks they are BSP type. I live in the UK, and I haven't got a clue ???
They are not metric or a pipe thread BSP (British Straight Pipe)
They are most definitely a unified thread unless you see a "M" in front of it, like the 88 gram bottle thread listed in the chart.
In the US, we are all screwed up (pun intended) as we have lots of stuff that use both metric and standard (unified, english, imperial, been called everything over the years) threads. I like the unified designation. We were suppose to switch over to the metric system back in the late 60's/70's but this country is so in trenched in the unified thread pitch that we just never figured out how to pull it off completely ???
Some good and not so good reading........
http://www.engineeringessentials.com/ege/fast/fast_page3.htm
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Offline ped
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #16 on: March 31, 2015, 09:51:50 AM »
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mostly unf sizes as your in the uk get your screws from gary lindop aka droid
he's on ebay and face book
ped
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Offline Buster
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #17 on: March 31, 2015, 10:12:10 PM »
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Cheers Ped, I have seen Droids advert, but without sounding harsh there is no way I am paying £3 ish for a couple of screws. :-X
Just as an example, there is some guy on the Bay doing a nut, a grub screw and an allen key for a mod to do on a walther PPK bb gun, this does away with the big awful plastic wing nut that screws in the co2 bulb..... he charges £6.95 + postage for those, and I can supply them for less than £1 including the allen key :-* (That's just an example).
I will carry on my searching and see what comes up.
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Offline targettgii
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #18 on: April 15, 2015, 07:23:28 AM »
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He hasn't been on here of late though.It happens though I myself wasn't on here as much as i used to be he might be just looking and not posting.
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Offline Poorman Plinker
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #19 on: August 20, 2015, 03:13:23 PM »
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??? I have been posting and using this chart for a long time . 8)
« Last Edit: October 05, 2015, 11:21:30 PM by Poorman Plinker »
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The above information is written for entertainment purposes only; it applies only to the arms, equipment and conditions under which the author's conclusions were drawn and should never be used as a substitute for professional assistance. The author assume no liability for damages (actual, incidental or consequential) resulting from use of the information or for the correctness of the information contained herein. The information is most likely not applicable to your situation and it cannot be generalized to any other equipment or conditions. Use of the information is at the users risk.
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #20 on: August 22, 2015, 03:46:49 AM »
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Thanks, I'll have to re-check that one. The 1/8" vs 1/4" sounds right and I will check the thread.
UTS is the standard, UNF is the form and tolerance (basically, as I understand it).
« Last Edit: August 22, 2015, 03:56:57 AM by arkmaker »
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114 Rifle, 1740 Pistol, 2240 Pistol, 1861 Shiloh Pistol, 357 Pistols, Titan GP Rifle, PM66 Rifle, 2400KT Carbine, 1377 Pistol, Umerex Fusion Rifle
Offline Poorman Plinker
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #21 on: August 22, 2015, 06:42:16 PM »
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Arkmaker,
I appreciate your interest in the "chart". ...
« Last Edit: October 05, 2015, 11:20:51 PM by Poorman Plinker »
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #22 on: August 23, 2015, 02:59:20 PM »
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I'm well pleased that these are not metric fasteners. Makes things much easier. The hardware store has plenty of stainless screws (even the little forward breech one) too.
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Man, that was close!
Offline mudduck48
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #23 on: August 23, 2015, 03:57:41 PM »
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You have a real good hardware store. I went to two here in town and the smallest screw they had was the 4-40, no 4-48 screws. I wound up going to Industrial Bolt, they have screws down to 0.
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Offline beerhippy
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Re: 22xx Screws & Threads & 1701P Trigger Swap Parts
« Reply #24 on: August 23, 2015, 11:11:38 PM »
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Just a locally owned Hardware Hanks. We actually have two of them close by. They also have plenty of springs and o rings. But I hear you. We are turning into a people who can't do the simplest of repairs so the merchants who catered to those abilities are dissapearing.
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