[Hallicrafters] SX-100 Pitch control iron slug screw

[jimmer2 at att.net]

I received a SX-100 mkII for Xmas with a broken off Pitch Control (BFO) 
screw just outside
the brass nut assy/chassis.  I would like to purchase one if possible or 
could someone
lead me in the direction of obtaining Halli parts. Halli part # 
003-103289 Iron core and Screw.
Thanks  Jim / W8JPM