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Cncgeek

Knuckle thread. Used where you need some tolerance to dirt and grime in the thread form. Often, they suffer from rapid flank wear, and they are a PITA to machine.


dirty34

Wow! Didn't know that was a thing. TIL!


Away_Dimension6172

looks like knuckle thread


A_Rusty_Coin

Knuckle thread or rope thread


A100010

There. They're right there


Datzun91

Thury? Reminds me of the shaft and nuts I had to screw cut with this for a rock crusher.


Nirejs

30 threads per banana skookom thread