Reid Tool Supply
Item code: B-23
Ball Knob; Round, Threaded

Phenolic Round Ball Knob has a 1.000 in diameter and 5/16 inch standard SAE threaded insert. 
The smooth surface gives a dressed-up finished appearance. 
DimcoGray Part Number: 1-113-032

Knob Diameter - 1.000 in
Color - Black
Insert Material - Brass
Knob Material - Phenolic
Knob Style - Round
Mounting Method - Threaded
Thread Length - 0.500 in
Thread Size - 5/16"

These are new and unused.  They may be dirty or have some minor scratches due to storage and handling.  There is no retail packaging.