Guns - desperately need a screw
Discussion
dhutch said:
As another option, can you counter bore the new rail to a depth to allow use of shorter/existing screws?
Good idea, dhutch but I'm afraid not. As the new rail is steel, they're less than 3 mm thick where the screws go. Plenty of 'meat' to countersink but not enough to counterbore. I could use a thicker alloy 'riser' rail but I like my scope's centreline to be low. Trenchard said:
Thanks, Bacon 'n' jonny.
Lathing some up might be a possibilty but I'm pursuing another. Because the added dovetail rail is going to be
long and held by four screws, shorter screws maight do the trick. Tonight's task, double check the depth
of the tapped holes in the barrel.
Shorter screws may well work. It’s not like you have much recoil to deal with.Lathing some up might be a possibilty but I'm pursuing another. Because the added dovetail rail is going to be
long and held by four screws, shorter screws maight do the trick. Tonight's task, double check the depth
of the tapped holes in the barrel.
OP If you message me through Pistonheads and I will give you the name of a gunsmith ex BSA who can source or manufacture exactly what you need. He is not cheap but the parts will be spot on.
As a side I used to shoot these in the late 70’s early 80’s as our school CCF has eight or ten of them
As a side I used to shoot these in the late 70’s early 80’s as our school CCF has eight or ten of them
Thanks again, gents.
Major step forward this evening. I took my digital calipers to the club and carefully measured the depth of the four screw holes in question. They ranged from 5.01mm (max) to 4.89mm (min). I expect the lower figure could easily be down to muck in the holes. Given that the rail material is 2.5mm thick and that the holes will be countersunk, I'm thinking that 1/4 inch (6.35mm) screws will do the business. I believe I can get these.
In addition, I may use Weaver Oval Head screws like this.
Note two things. These are a sort of cross between countersunk and cheese head so some tweakery when drilling the clearance holes in the rail may be possible. Thing two is the note about their not being available on back order means no stock, even in the States, for two months or more.
Off searching now.
Found some!!
From Ant Hill at ANT Supplies in Swansea, at about £6 less than those not in the States with their £5.99 extra for carriage.
Only challenge, the shopping cart is 'Off 'til Saturday' perhaps to stop p*ss artists from ordering with a skinful?
Impending result.
Major step forward this evening. I took my digital calipers to the club and carefully measured the depth of the four screw holes in question. They ranged from 5.01mm (max) to 4.89mm (min). I expect the lower figure could easily be down to muck in the holes. Given that the rail material is 2.5mm thick and that the holes will be countersunk, I'm thinking that 1/4 inch (6.35mm) screws will do the business. I believe I can get these.
In addition, I may use Weaver Oval Head screws like this.
Note two things. These are a sort of cross between countersunk and cheese head so some tweakery when drilling the clearance holes in the rail may be possible. Thing two is the note about their not being available on back order means no stock, even in the States, for two months or more.
Off searching now.
Found some!!
From Ant Hill at ANT Supplies in Swansea, at about £6 less than those not in the States with their £5.99 extra for carriage.
Only challenge, the shopping cart is 'Off 'til Saturday' perhaps to stop p*ss artists from ordering with a skinful?
Impending result.
Edited by Trenchard on Friday 6th May 23:52
NMNeil said:
Plenty available it seems
https://www.ebay.co.uk/sch/i.html?_from=R40&_t...
Yes, thanks. I'd seen such things but the postage scared me off! I've just ordered 8, which cost £7.50, including P&P, tax, the 'R' in the month of April and everything else. Job's reet, cracked it. https://www.ebay.co.uk/sch/i.html?_from=R40&_t...
gazza285 said:
As an alternative, you could buy a die nut and rethread a slightly larger screw.
Thanks gazza285. I'd looked at this but some problems arose. The right die nuts are available but that's from the 'States with the consequent outrageous postage. I also spoke to a bloke who makes specials in S/S for a living and even he can't get blanks for threading in No,6 size. And then, larger screws tend to have a larger head than I could accommodate and the existing thread would have to be lathed off and I don't have a lathe. As you see, I can do research but now I've found some suitable screws, I'm sorted.
Grateful thanks to all who contributed, I appreciate your input.
Trenchard said:
Thanks gazza285. I'd looked at this but some problems arose. The right die nuts are available but that's from the 'States with the consequent outrageous postage. I also spoke to a bloke who makes specials in S/S for a living and even he can't get blanks for threading in No,6 size. And then, larger screws tend to have a larger head than I could accommodate and the existing thread would have to be lathed off and I don't have a lathe.
As you see, I can do research but now I've found some suitable screws, I'm sorted.
Grateful thanks to all who contributed, I appreciate your input.
You would be surprised what can be achieved with a drill, a file and an angle grinder...As you see, I can do research but now I've found some suitable screws, I'm sorted.
Grateful thanks to all who contributed, I appreciate your input.
gazza285 said:
You would be surprised what can be achieved with a drill, a file and an angle grinder...
Well possibly. However, the club supremo who's letting me play with the gun pre-purchase is an MSc Eng. That'd be a hanging offence in his book!Edited by Trenchard on Saturday 7th May 22:18
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