Attached are a few pictures of a screw which I came across in a box of old lathe parts.
Any idea what it could have been made for or used on?
Makes no sense to me.
Any idea what it could have been made for or used on?
Makes no sense to me.
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Re: Screw question, off subject.
Not a clue about that screw...
Looks like it is for some type of adjustment purpose, similar to the screw in a crescent wrench...Joel Adams
1974 Coupe
1985 Coupe
"I know the voices aren't real...but sometimes they have some really kewl ideas...."
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Re: Screw question, off subject.
That is obviously Bubba's famous one-size-fits-all pipe plug.....Comment
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Re: Screw question, off subject.
Bruce-----
Cracks in cast iron castings can often be repaired by a process known as "pinning" or "stitching". In this process, a hole is drilled at one end of the crack line and tapped for a special TAPERED THREADED PLUG which is then installed. The plug is then ground flush with the surface of the casting. Then, another hole OVERLAPPING the installed plug and crack line is drilled and tapped for another special TAPERED THREADED PLUG. This process is repeated until the entire crack line is "pinned". I believe what you have here is one of the special TAPERED THREADED PLUGS used in this process. I'm not 100% sure, though.
By the way, does the above process sound like an arduous, tedious, time consuming process? Well, it is but it's a lot less arduous, tedious, time consuming, and EXPENSIVE than the process of removing, say, an engine block from the bowels of a ship because the block is cracked. It can also be used in many cases to repair a valuable Corvette engine block. Is it expensive? Yes, it is because a lot of time is involved in doing it, especially if it's a relatively long crack. It's not suitable for repairs in all areas of the block, though, especially things like main bearing webs.In Appreciation of John HinckleyComment
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Re: Screw question, off subject.
Joe, Thats what it looks like to me.Comment
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Re: Screw question, off subject.
Thanks to everyone for your input.
I contacted a metal stiching company in Wisconson and it seems like the mystery screw could be for stiching metal.
Some examples of repairs include engine blocks, gear cases, bell housings, connecting rods, etc.
An interesting process to say the least.Comment
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