metric fine grub screws

Hi guys, im looking for some grub screws either Hex, Torx, or security screw type, these need to be M10.x 50.x 0.75 looking for several these, any help apreciated.

Thanks Garry.

Garry,

Best of luck finding those! I've never seen any, though there are several ranges of ISO metric fine threads which does include M10.0 x 0.5. However, to help others to help you, could I suggest you (a) confirm the exact size you are looking for - you decimal points are in odd places - did you mean M10.0 x 0.5mm? and what was the 0.75? if it's a length, it's a bloody short screw! And (b), what is it for? someone may have some alternative suggestions.

David

Not too bad if you interpret the points sensibly, David. I think he wants them 50 mm long. However, I have never seen grub screws with fine threads. Actually having troubles to see the catalog of my usual screw suppliers, so cannot definitely say if they exist or not..

Threaded rods with fine threads exist, but not finer than 1 mm pitch.

I would get a 10 x 0.75 die and thread them myself - or even on the lathe.

Greetings, Hansrudolf

Garry, Look at Precision Tech Supplies. I have had an excellent service from them.

pts_uk.com/products

Clive

I think its going to be hard to find them in such a fine metric pitch. 1.25mm pitch will be hard enough let alone 1.00 then 0.75.

I would by some M12 x 60mm long ones, hold by the end and use the tailstock ctr in the hex recess then turn to 10mm and screwcut the thread. cut off the 10mm you held it by and that will give you a grub screw with the thread and a hex socket. Provided the hex was not too big to gert turned off when reduced to 10mm.

J

These people have been able to supply some very unusual fixings etc, might be worth phoning them.

**LINK**

sizes i require are m10.0 x 50.0 x 0.75 looking for around 50 off. thought they might be rocking horse poo .

thanks for all the quick replies &suggestions.

Garry.

Hansrudolf,

You are right - I was thrown by the length and pitch being the wrong way round, and the use of decimal points without a following .0

David

Tri-ard.co.uk

Ask for Craig. I use them for every fastener and I use a lot. Brilliant company, they will obtain them for you.

Cheers

Mike

Mike,

Interesting, tri-ard do not hold a single socket headed screw, at least according to their website.

Triard have plenty of boxes of grub screws, was shown around last year by Craigs other partner Mark.

They have even the choice of chinese or Danish screws, guess what i had.

I have emailed all the suppliers hopefully i might get lucky

Cheers Garry.

Hi Garry.

I had a dig around on the net and you can get M10x 50 Socket head set screws but none state the thread pitch and it seems only in stainless .

Also try- socket head grub screw - as this also returned a few sites one is Brighton - best  international and they have an outlet at cradley heath - west midlands .

[email protected]

The thread pitch for M10 seems to be either 1.25 or 1.5 only .

M12 HAS 1.75 PITCH  .

What are they for ?

Ian.

Edited By SLOTDRILLER on 05/09/2012 06:22:05

Oddly enough it appears that you can buy an M10 x.75 tap and die !

What one would use it for is beyond me !

M10x .75 is not listed as an ISO thread pitch that i can find so buying bolts will more than likely be impossible .

You may have to make them and cut the hex socket with a wobble broach .

IAN

M10 x .75 is used for those thin nuts that hold Potentiometers onto panels.

..... unfortunately, that's still a far cry from 50mm long grub screws.

Out of curiosity, Garry ... what do you need them for?

MichaelG.

.

P.S.  There is a very comprehensive Thread Chart, here

... and they seem to offer some deeply discounted prices.

Edited By Michael Gilligan on 05/09/2012 07:34:28

A note for all the metrically challenged around here:

Whenever you see a thread designated Mxx it is ALWAYS the standard (coarse) pitch for that diameter. All other (fine) pitches are correctly called MFxx.

You can see that in the table above, posted by Michael.

Greetings, Hansrudolf

Thanks Ian for the link that will be very handy.

Garry.

M10 x 0.75 is I think used on an irvine OS Engine silencer tube.

regards david

Is it possible to make the threaded 50mm section then machine a 6 - 8 mm hex (male) on one end ?

You could adapt a cheap socket to fit inside the threaded hole for the grubscrew and engage this hex to tighten the screw - i suppose it would depend on access and what clearances are present etc.

I take it that the original grubscrews are not available from the manufacturer ?

Ian