Welding Stainless Steel 316L

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Question:  I am making a Thumb wheel. ...Due to the size of the thumb wheel it is not COTS available....  Therefore, the piece parts are 1/4 x20 threaded rod stock (316L)....pretty sure this is available,...and a 1.5" dia x 0.170" (316L)disk.  I need to weld the two pieces together, cleanly without having a gross HAZ and any part distortion.   Planning on having the disk drilled in the center to accept the threaded rod stock to ensure perpendiculairty of the pieces so the thumb wheel spins true.  But I do not know what Welding process and weld rod material (if any needed) to specify/call on my mechanical drawing NOTES, so "any qualified welding house"  can successfully quote and manufacture this hardware.  I appreciate any quidance as to what the correct note sets for my mechnanical drawing to achieve this hardware.Thanks!HHC
Reply:I would say tiging it with .040 tungsten would be your best bet.
Reply:I WOULD TRY TIGGING THE ASSEMBLY WITH 1/16" TYPE 316 TIG WIRE AT APROX. 28-30 AMPS. AND ARGON GAS OF COURSE. GOOD LUCK!
Reply:For 316L stainless, you'll want 316L Filler Metal.Common sense in an uncommon degree is what the world calls wisdom.