Lincoln Jeffries tap screw

[Vernal]

I have a late BSA LJ (serial23xxx), and I have never been happy that the loading tap screw is correct. What I have is a motley assortment of washers, including a spring washer, held by a sort of combined screw and washer with a taper on the upper part of the shank. (I tried to post pictures, but as so often the technology defeated me).
I think what should be there is the knurled nut and spring shown as "no longer available" on the John Knibbs website, https://www.airgunspares.com/ljbp3rd...plugscrew.html. Can anyone confirm this please?

I now have a chance of someone making one for me, but I would need to know what the thread is so that I can buy a die. Any advice would be greatly appreciated.

[Benelli B76]

Here is another type...

[IMG][/IMG]

[Vernal]

Thanks, as you say it is certainly another type. Is this on a late series gun please?
If so it does seem to confirm that mine is not original.

[Benelli B76]

See...

https://forum.vintageairgunsgallery....fle/#post-1695

[walnutfarmmick]

EdbearII memorably described these as BSV - British Standard Vague.

Good luck, Mick

[Vernal]

See...

https://forum.vintageairgunsgallery....fle/#post-1695

Thank you,I had had a look at that, but the BSV comment above seems to apply. Most of the late series seem to have the knurled nut, but one, a 6th batch, has a screw almost identical to mine. Sadly, the text says this is a replacement! I don't want tro get one made unless I am sure it is right, so I suppose I shall just have to live with the scew which is on it now.