M3.5 x 10mm metric fine cap head machine screws, 2 needed.

Message

#1 Post by **Pete** » Wed Aug 01, 2018 8:01 pm

Can anyone help with these, please, or any idea where I can find them? I've tried the model fixings sites but they only have the standard coarse threaded types.

I'm trying to fit a scope to an ancient Match 54 dating from the early 50's, (I think).........still shoots and has a fantastic trigger, but only a short length of dovetail behind the loading port, so I need to utilise the two threaded holes in the top of the barrel just forward of the receiver.

Pete

knewmans · #2 Post by **knewmans** » Wed Aug 01, 2018 8:34 pm

Another option Pete http://www.engineeringsupplies.co.uk/me ... -4840.html. Bit fiddly.

#3 Post by **JSC** » Wed Aug 01, 2018 8:59 pm

Have you tried AHC in Camberley?

#4 Post by **20series** » Wed Aug 01, 2018 9:08 pm

Try any where selling electrical gear, M3.5 is standard socket box face plate thread.

Alan

strangesam · #5 Post by **strangesam** » Wed Aug 01, 2018 9:17 pm

I've looked at my usual suppliers of small and unusual screws in the UK,

Not had any luck.

www.accu.co.uk could probably make some for you, but they don't have stock.

I think the die and a lathe is probably your best bet. Possibly take a M5* and turn it down, then re-thread. Or make one from scratch.

Would an RFD be able to source them from Anschutz?

* cant use an M4 as the minor thread diameter is only about 3.1mm

#6 Post by **glevum** » Wed Aug 01, 2018 11:53 pm

Have you tried Margnor in Guildford?

#7 Post by **rox** » Thu Aug 02, 2018 6:19 am

JSC wrote:Have you tried AHC in Camberley?

They weren't available there when I was looking for some last year. I got the impression that this screw is too small for a cap head.

..

#8 Post by **ovenpaa** » Thu Aug 02, 2018 6:35 am

I have not seen screwcutting inserts below 0.5mm so I would assume the 0,35mm is going to be special order. I would be inclined to go for a spit die and machine screws out of brass to prove concept first of all.

#9 Post by **ovenpaa** » Thu Aug 02, 2018 6:40 am

Found them, so the inserts do exist off the shelf and at a sensible price which means the screws can be made although they would be a faff, I did some 48tpi screws recently and they were fine enough to make me wonder what I was going to get when the machine stopped :)

#10 Post by **JSC** » Thu Aug 02, 2018 8:09 am

rox wrote:
JSC wrote:Have you tried AHC in Camberley?
They weren't available there when I was looking for some last year. I got the impression that this screw is too small for a cap head.

..

I've got some 2.5mm cap heads from them, but that was a while ago I admit.

I'm actually popping in there today for another hard-to-get thread, so I'll ask anyway.

The UK's Finest Independent Forum for Shooters and Gun Owners. Est 2010.

M3.5 x 10mm metric fine cap head machine screws, 2 needed.

M3.5 x 10mm metric fine cap head machine screws, 2 needed.

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Re: M3.5 x 10mm metric fine cap head machine screws, 2 neede

Who is online