hatrick Posted March 3, 2016 Report Share Posted March 3, 2016 I finally got my paperwork and picked up my new Lewis gun and I was wondering if anyone had a spare bipod leg screw?? The head on one of the leg screws was broken off so I need to find a replacement. ThanksEric Link to comment Share on other sites More sharing options...
nfacol Posted March 11, 2016 Report Share Posted March 11, 2016 I need one, too. The closest new one available from McMaster Carr is http://www.mcmaster.com/#91404a540/=11hsnsphttp://www.mcmaster.com/mva/library/20130909/91404a540l.gif?ver=1378369278 Link to comment Share on other sites More sharing options...
nfacol Posted March 11, 2016 Report Share Posted March 11, 2016 Another source for maybe a little better looking wing screw: http://www.lowpriced-electronics.com/ProductLookup.aspx?id=B002CIH5XI http://ecx.images-amazon.com/images/I/41rUwv1HvBL.jpg Link to comment Share on other sites More sharing options...
nfacol Posted March 11, 2016 Report Share Posted March 11, 2016 I just ordered three of the Peerless ones above. I'll let you know how they work and you can have one if they do. Link to comment Share on other sites More sharing options...
DougStump Posted March 11, 2016 Report Share Posted March 11, 2016 I dug out my drawing of the bipod, you're going to have problems. The screw you ordered is 1/4" diameter (ok) and 20 threads per inch. The original screw was 26 TPI which is non-standard now. I doubt you will have much success re-tapping the collar to match the new screw. I wouldn't try it. If you can find a good machinist that will take on small jobs (without charging an arm or leg), here's what I would do.1. Thread a 1/4" steel rod 26 tpi and make sure it threads properly into the collar2. Chuck the replacement bolt in a lathe by the threads3. Use a parting tool to turn down the shank to (maybe 3/16") for about 1/4" from the handle4. Cut off the handle leaving the 3/16" shank5. Drill the end of the 14"x26 tpi rod 3/16" (to match the shank on the new bolt)6. Silver Solder or Braze the two together. I've done this a couple of times with great success. Sorry, but I can't do the work right now. I'm fighting cancer. Link to comment Share on other sites More sharing options...
nfacol Posted March 13, 2016 Report Share Posted March 13, 2016 Thanks for the pointer, Doug. I should have noted that my bipod is a US Savage that uses the 1/4 - 20 wing screws. I did not consider that the original poster's is probably British. Link to comment Share on other sites More sharing options...
DougStump Posted March 13, 2016 Report Share Posted March 13, 2016 Well, I'll file that information tidbit away for future reference. I wonder if the other threads on the Savage Lewis are common threads (for us that is). Link to comment Share on other sites More sharing options...
hatrick Posted March 14, 2016 Author Report Share Posted March 14, 2016 Thanks for the replies and this is great information for the clamp screw. I am actually looking for the screw that holds the actual leg to the clamp that is retained with a split pin. Thanks,Eric Link to comment Share on other sites More sharing options...
DougStump Posted March 14, 2016 Report Share Posted March 14, 2016 Eric, Oh, THAT screw! I'll look at the specifications for you when I get home. Hate to use a nasty four letter word, but I'm at work..... Link to comment Share on other sites More sharing options...
DougStump Posted March 17, 2016 Report Share Posted March 17, 2016 Eric, Sorry this is late..... The screw is 1/4" diameter, 1 1/16" long, 26 threads per inch, Cycle thread. I quick Google search for "cycle thread" found dies are available. One possibility, get the threading die. Get a 1/4" bolt with a shank longer than the needed screw. Turn the head of the bolt down to match the original screw. Hard part will be holding the screw to cut the threads. Maybe hold it with a collet? It would be an interesting challenge. Link to comment Share on other sites More sharing options...
nfacol Posted March 17, 2016 Report Share Posted March 17, 2016 New screws now on both legs. Loose screws shown below legs are old screw on left and new screw on right. The "P" logo is for "Peerless." I suspect the original Savage screws may have been lost years ago by the Canadian army, or the studio armory, or Curt Earl. I suspect that because according to the Peerless website they did not enter business until 1951. http://i123.photobucket.com/albums/o287/nfacol/LG/DSC00596_zpskqtied1e.jpg Link to comment Share on other sites More sharing options...
hatrick Posted March 17, 2016 Author Report Share Posted March 17, 2016 Doug, thank for the information and specs on the screw I need. That BSC (British Standard Cycle thread) is a real obscure one. I was hoping to just find a screw on the loose but I guess this is way more complicated than expected. Not being a machinist type I may have to keep my fingers crossed that someone out there has a trashed bipod they can spare a screw from. I will look into what you advised and see what I can come up with. Thanks,Eric Link to comment Share on other sites More sharing options...
hatrick Posted March 22, 2016 Author Report Share Posted March 22, 2016 Doug... thanks again for the bipod screw specs. I found someone that is going to make me up a couple of replacements. Now I'm on to both long and short buttstock screws. Any chance you have the specs on the threads for the both buttstock screws? I am going to look into having some of these made up and I just want to confirm the thread specs. Just out of curiosity, where are you getting these specs from?? Fantastic info... Thanks,Eric Link to comment Share on other sites More sharing options...
DougStump Posted March 22, 2016 Report Share Posted March 22, 2016 Eric,Somewhere over the rainbow! PM me your email. Doug Link to comment Share on other sites More sharing options...
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