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Model Forum / General / Models / October 2008Toolpost screws
Boy, this group is quiet atm ! I'm trying to source M8 square headed toolpost screws but google doesn't seem to be much use. Does anyone here know of a UK supplier who actually stocks these ? I tried my list of usual suspects but can't find anyone who lists them. Thanks, Mike >Boy, this group is quiet atm ! > >I'm trying to source M8 square headed toolpost screws but google >doesn't seem to be much use. Does anyone here know of a UK supplier >who actually stocks these ? I tried my list of usual suspects but >can't find anyone who lists them. I wanted some in M10 or 3/8" for a batch of toolholders that I was making a few years ago, my local bolt supplier got some in for me but he had to get a box of 200 from, I think, Germany & they weren't cheap. I've still got some spare if anyone needs any in M10. Someone was selling them on ebay in small batches a while ago, may well still be doing so, I think they were Whit threads though. Worth checking, I think. Tim >Boy, this group is quiet atm ! > [quoted text clipped - 6 lines] > >Mike Our suppliers suggested WDS Tooling Aids in Leeds. 0845 6066677 http://www.wdsltd.co.uk Peter -- Peter A Forbes Prepair Ltd, Rushden, UK peterforbes@prepair.co.uk http://www.prepair.co.uk http://www.prepair.eu > Boy, this group is quiet atm ! > > I'm trying to source M8 square headed toolpost screws but google > doesn't seem to be much use. Does anyone here know of a UK supplier > who actually stocks these ? I tried my list of usual suspects but > can't find anyone who lists them. Is it such a big deal to get some 8mm bolts and mill the heads square? Or just use cap heads or hex bolts anyway? I have square headed toolpost screws on my Student but I really wouldn't be fussed if I had to use something else if they all broke. It's only a machine.  SignatureDave Baker >> Boy, this group is quiet atm ! >> [quoted text clipped - 7 lines] > screws on my Student but I really wouldn't be fussed if I had to use > something else if they all broke. It's only a machine. Ah, perhaps that's a difference between a pro and a hobbyist. I'm sure if were a pro with a workshop full of machines I would think "its only a machine", but that one single myford I have in my "workshop" is my baby!!! So, if its supposed to come with a square headed anything, than that's what it must have. I guess its like having to have the correct grill or wing mirror on a vintage car. No, of course its not rational :) !!!! AC > Is it such a big deal to get some 8mm bolts and mill the heads square? Or > just use cap heads or hex bolts anyway? I have square headed toolpost screws > on my Student but I really wouldn't be fussed if I had to use something else > if they all broke. It's only a machine. It's true that I could use hex head or socket head screws but it would drive me mad to be forever looking for a different tightning tool depending on which toolholder I was trying to fit. As you suggest, I am going to have to make some of the bolts myself anyway because the set I need for the blade type parting holder act in tension to compress the holder across a slit and standard square head bolts have nothing in the head to bear down on. If I did make the bolts myself should I use high tensile material or is EN1A OK ? I can probably get hold of EN8 or EN24, which of these would be better in this application and do they need heat treating ? I don't think there will be enough height in the head to get away with your idea of milling hex set screws square if I allow for an integral bearing "washer". But this is admittedly starting to get quite complicated... Mike > -- > Dave Baker snip >As you suggest, I am going to have to make some of the bolts myself >anyway because the set I need for the blade type parting holder act in >tension to compress the holder across a slit and standard square head >bolts have nothing in the head to bear down on. IMHO if you need screws for this application they should not be square head! A capscrew is normal here. I would certainly pick a hex size that is used elsewhere on that machine. I recently made a Dickson toolholder with indexable parting blade. The blade is clamped with 4 off 1/4BSF capscrews. Looks perfect. Hex key also used for locking top slide rotation. Richard > snip >>As you suggest, I am going to have to make some of the bolts myself [quoted text clipped - 10 lines] > > Richard The advantage of the square head screws is they can't fill up with shrapnel like capscrews do. If it's a hobby, then make some, the manhours aren't chargeable to the job, only the materials :-)) Steve >> snip >>>As you suggest, I am going to have to make some of the bolts myself [quoted text clipped - 13 lines] >The advantage of the square head screws is they can't fill up with shrapnel >like capscrews do. it's a big advantage too: I've got a small (12mm sq) indexed holder on the lathe most of the time and the screw on that which holds the TCT insert is a smallish torx. Whenever I want to change it, I have to clean the crud out of the hole. SignatureAustin Shackles. www.ddol-las.net my opinions are just that Travel The Galaxy! Meet Fascinating Life Forms... ------------------------------------------------\ >> http://www.schlockmercenary.com/ << \ ...and Kill them. a webcartoon by Howard Tayler; I like it, maybe you will too! >it's a big advantage too: I've got a small (12mm sq) indexed holder on the >lathe most of the time and the screw on that which holds the TCT insert is a >smallish torx. Whenever I want to change it, I have to clean the crud out >of the hole. You could always machine a little cap to keep the crud out... <G> Regards Tony >>it's a big advantage too: I've got a small (12mm sq) indexed holder on the >>lathe most of the time and the screw on that which holds the TCT insert is a >>smallish torx. Whenever I want to change it, I have to clean the crud out >>of the hole. > >You could always machine a little cap to keep the crud out... <G> yeah, but it's a torx, so it'd be a pain making it fit nicely. SignatureAustin Shackles. www.ddol-las.net my opinions are just that Travel The Galaxy! Meet Fascinating Life Forms... ------------------------------------------------\ >> http://www.schlockmercenary.com/ << \ ...and Kill them. a webcartoon by Howard Tayler; I like it, maybe you will too! > >>it's a big advantage too: I've got a small (12mm sq) indexed holder on the > >>lathe most of the time and the screw on that which holds the TCT insert is a [quoted text clipped - 4 lines] > > yeah, but it's a torx, so it'd be a pain making it fit nicely. Squirt of hot melt glue, with a nut on top as a handle AWEM > The advantage of the square head screws is they can't fill up with > shrapnel like capscrews do. Ah! That's why. I have a stiff artist's paintbrush in the lathe toolset exactly for removing such shrapnel, but never thought of that. Hmmm, maybe buy some roofing type screws and cut the caps off, leaving the square part of the shank? -- Peter Fairbrother >> The advantage of the square head screws is they can't fill up with >> shrapnel like capscrews do. [quoted text clipped - 6 lines] > >-- Peter Fairbrother I use a magnetised scriber point. works less well with brass though... Mark Rand RTFM >> snip >>>As you suggest, I am going to have to make some of the bolts myself [quoted text clipped - 13 lines] >The advantage of the square head screws is they can't fill up with shrapnel >like capscrews do. My compressor comes in handy <G> >If it's a hobby, then make some, the manhours aren't chargeable to the job, >only the materials :-)) Agreed. >Steve Richard > It's true that I could use hex head or socket head screws but it would > drive me mad to be forever looking for a different tightning tool [quoted text clipped - 12 lines] > > Mike Mike Just an alternative view but while I understand the frustration of looking for tools, my solution (as taught during my apprenticeship) is to ensure that each machine has a set of the basic tools necessary located either on the splash guard (tailstock end), or on a shelf/ board behind the machine. The toolkit consists of the necessary chuck keys, locking spanners, toolpost spanners, hex keys (proper T handle ones) and even adjustment/lubrication stuff if they are unique. Look out at the end of each training session if your kit was missing something!! With the cost of basic tools being very low at the moment it takes little to assemble a kit for each machine. Our first practical session of each term in the training school was to be assigned a machine and to ensure that its toolkit was complete and in good condition. Tool holder screws were made from "mild steel" and while fine they did wear fairly quickly with our clumsy use. I would agree with Richard that the ideal for your need would be "normal" 12.9 Socket head screws, they are high tensile and will last forever. Your machine toolkit just needs the addition of a suitable hex key. The first job when I acquired my Boxford was to make one of Johns QCTP and a selection of holders. They are all equipped with either socket head cap or grub screws (latter bought by the bucket from Proops) and I haven't needed to change a single one yet after several years of hard use. I can empathize to an extent with the comment from AC re "originality" but my lathe is not going to be judged for the "concours" competition and so when there is something better available then I tend to use it. Good quality socket head screws are just such an example. Regards Keith >Boy, this group is quiet atm ! > [quoted text clipped - 6 lines] > >Mike Aha! Have you tried to search for "square head set screws" instead of toolpost screws? Using the former gives these links as the first 2 in Google UK:: http://www.socket-allied.com/products_square_head_set_screws.asp http://www.nssocketscrews.com/squareheadsetscrews.htm I don't know whether they are stock or special order though. Peter > http://www.socket-allied.com/products_square_head_set_screws.asp > > http://www.nssocketscrews.com/squareheadsetscrews.htm Thanks for the links I will try them, Mike > Boy, this group is quiet atm ! > [quoted text clipped - 6 lines] > > Mike Whats wrong with buying them from the manufacturers ? http://www.nssocketscrews.com/squareheadsetscrews.htm John S. |
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