“Makers Plates” rivets?

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“Makers Plates” rivets?

Home Forums General Questions “Makers Plates” rivets?

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  • #323215
    Andrew Tinsley
    Participant
      @andrewtinsley63637

      I have several items where the makers plate / specification are coming adrift. These plates are held on by some kind of rivet.

      I assume these rivets are made to dead length and after they are inserted into a hole of a critical depth, one gives them a good tap to expand them.

      I am not sure about this as it means the depth of the holes and plate thickness are critical. If hole is too deep then the rivet cannot expand radially and if too shallow then the plate will be loose.

      So how do they work and can they be purchased? They are a bit on the small side to turn. It would mean getting my watchmakers lathe sorted!

      Andrew.

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      #25580
      Andrew Tinsley
      Participant
        @andrewtinsley63637
        #323217
        Michael Gilligan
        Participant
          @michaelgilligan61133

          Andrew,

          These are often 'Hammer-Drive" rivets [or some such] and they are hard steel, with a multi-start 'slow' thread.

          Readily available, but the very devil to remove if they were fitted properly in the first place !!

          MichaelG.

          #323218
          Clive Brown 1
          Participant
            @clivebrown1

            In a recent post, I mentioned hammer drive rivets. AFAIK, they can be purchased on-line. They are steel r/h rivets ad have a helix on their shank. They can be driven into a correctly sized blind hole. Might suit your need.

            #323219
            Chris Evans 6
            Participant
              @chrisevans6

              We used to use "Hammertite" screws/rivets to affix makers names to our mould tools. A rivet with a sort of spiral thread form that twisted in the hole as it was tapped in.

              #323221
              Journeyman
              Participant
                @journeyman

                driverivet.jpg

                Drive Rivet

                John

                #323237
                D Hanna
                Participant
                  @dhanna35823

                  What diameter/length do you need Andrew. I have a heap of 1/8″x 5/16″ here if they will suit.

                  #323249
                  Clive Foster
                  Participant
                    @clivefoster55965

                    Have you tried reseating the rivets using a punch with suitably shaped hollow head. Never done it myself but I recall the idea being mentioned during tea break many years ago. Don't remember the topic coming up again so I assume it worked. Either the by the rivet going in a bit deeper or by the head deforming to take up the slack.

                    Clive

                    #323256
                    Brian G
                    Participant
                      @briang

                      If it is a new installation you could always cheat and use slotless round head screws (threaded rivets) like these **LINK** into a tapped hole.

                      Brian

                      #323262
                      Neil Wyatt
                      Moderator
                        @neilwyatt

                        Superglue

                        >ducks<

                        #323270
                        Andrew Tinsley
                        Participant
                          @andrewtinsley63637

                          Hello,

                          Thanks everyone for enlightening me. I do seem to remember this type of "rivet" from the distant past. It took everyone here, to get that surfacing in the brain!

                          I have no idea what size the originals were, so some judicious measuring is needed! Thanks for the offer Dallas, I will get back to you once I have measured up the holes!

                          Super gluing sounds a good way to cheat, but the rivets have disappeared long ago before I got the items, so no go with that idea.

                          Probably be accused of being finicky, but a makers plate hanging on one fixing does annoy me! I suppose I have more than enough to do without fiddling about with such things. But it would remove a constant niggle!

                          Thanks everyone for being so helpful!

                          Andrew.

                          #323288
                          Roderick Jenkins
                          Participant
                            @roderickjenkins93242

                            On my little Pultra I used copper rivets and Loctite. I sheared off the old rivets with a cold chisel. Fortunately the holes were much deeper than they needed to be so I could drive the old shaft deeper in, leaving 1/8" to hold the new rivet.

                            HTH,

                            Rod

                            #323290
                            not done it yet
                            Participant
                              @notdoneityet

                              Posted by Brian G on 24/10/2017 14:04:34:

                              If it is a new installation you could always cheat and use slotless round head screws (threaded rivets) like these **LINK** into a tapped hole.

                              Brian

                              Are they not designed to have nuts fitted on the 'hidden' face, so drilled right through?

                              #323311
                              Andrew Tinsley
                              Participant
                                @andrewtinsley63637

                                I had a nasty suspicion that I might have some of these fixings somewhere. Not realising what they were, a quick search in the odds and sods cupboard revealed two packets of said fixings. Job now done, very worrying that I had to ask here, when the solution was in the damn cupboard.

                                I claim a very senior moment, the alternative is ……… now what was I going to say? Forgotten already!

                                Thanks everyone,

                                Andrew,

                                #323321
                                Jeff Dayman
                                Participant
                                  @jeffdayman43397

                                  Just FYI these fasteners are called type U metallic drive screws in north America. Link below to dimensions of ANSI std ones in case anyone is still awake and interested.

                                  https://www.hpaulin.com/media/wysiwyg/Round_Head_Type_U_Metallic_Screws.pdf

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