Screw Help

jpc

July 31, 2019 09:51

Hello

Going through a retired gunsmith shop and came across a few of these hollow-headed screws.

Seen them before, but just can't put my finger on them.

Anyone recognize them?

take care and thanks

jpc

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  hillbille

  July 31, 2019 17:18

  can't tell how long they are, but look like set screws for easy off scope bases on rimfire dovetail......

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  iceracerx

  July 31, 2019 17:46

  Compression screw *thumb" for stop ring for a Llyman Super Targetspot scope.
  
  https://image.invaluable.com/housePhotos/NorthAmericanAuctionHouse/79/617679/H5363-L133344031.jpg

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  David Nunn

  July 31, 2019 23:06

  Thumb screws from QD swivels.

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  mrmike08075

  July 31, 2019 23:54

  Very reminiscent of the external scope tube spring set screws on my unertl 20 1/2X mounting and adjustment hardware...
  
  Also quite similar to the set screws found on several of my sniper scope mount systems especially the British SMLE "t" type and the M1 Garand "D" variant...
  
  https://images.app.goo.gl/c6GL3TatQTqv1qf97
  
  Just a guesstimate - apropos of a gunsmiths hardware possibles parts hoard.
  
  Please let us know if a definitive solution is arrived upon - inquiring minds...
  
  Mike

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  charliemeyer007

  August 01, 2019 05:20

  So something for scale like a quarter or a tape measure would help. What does the hollow head look like - is it threaded? Screw size 6-48?

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  bambihunter

  August 01, 2019 09:36

  They also remind me of a bolt handle on a semi-auto .22lr my dad had when I was a kid. It seems like it might have been a Springfield. It was a relatively cheap one and could shoot shorts, longs, long rifle.
  
  Like mentioned above, a reference for scale might help a lot too.

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  jpc

  August 01, 2019 13:41

  Thanks for all the replies ?
  
  Looks to be a tad over an inch
  
  Not threaded inside
  
  take care
  
  jpc

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