The A-750 The A-750 vernier control has a 10-32 threaded shaft for use with a ball point or threaded terminal. Unique ball-socket construction permits the threaded end to swivel 80 degrees in any direction. The casing has a Teflon™ inner liner for low friction and heat resistance in high-temperature areas such as engine compartments. Furnished with FAA-style knobs (Black. Travel: 3-3/8". Wt. 1 lb. (4'). Stocked in the following lengths (measurement taken from under panel nut to end of threaded shaft with knob pushed in). It is 48 inches long. Made in USA Made in USA