"New" needle valve doesn't fit Black Widow???

I have a Black Widow with a metal backplate, double slit cylinder; no history on it as I picked it up with a bunch of other stuff.

I am "rebuilding" as it had a dried fuel pickup, missing gaskets and the needle was bent.

I picked up a pair of "used" cox needle valves from an eBay seller (aerohusker). No complaints there. However, the "new/used" needle valve only goes in about 8 turns while the old, bent one goes in about 12 turns. I noticed because I usually blow on the pickup fuel line to see if the needle will cut off when fully screwed it. In the case of the "new" one, it doesn't.  Pic shows "new" vs the old bent one along with the BW backplate. They actually look the same...
BTW, the 2nd "new" needle valve fits properly in a Babe Bee that also needed one. I did swap them, same results

Was there a difference in needle valves for a Black Widow???

Thanks,
Bill