The tapped hole sizes listed with these knobs are only the ones most commonly encountered. Other thread sizes can be specified.
K19
Side
Knob
3/4" dia.
tapped 1/8"IPS
K20
Switch
Knob
1 7/8" long
tapped 1/4"-27
K21
Finial
2" high
tapped 1/4"-27
K22
Post
Finial
3 1/4" w, 1 3/4" h
tapped 1/4"-27
TS2
Ball
Screw
1" long
threaded 8-32
TS1
Ball
Screw
7/8" long
threaded 4-40
K18
Side
Knob
3/4" dia.
tapped 6-32
K14
Post
Finial
1 7/8" dia.
tapped 1/8"IPS
K15
Teardrop
Finial
1 1/2" high
tapped 1/8"IPS
K16
Ribbed
Finial
1 1/4" dia.
tapped 1/4"-27
K17
Finial
1 1/8" dia.
tapped 1/8"IPS
LS1
Leaf
Switch
3 1/2" long
tapped 8-32
K13
Cinch
Knob
1" dia.
tapped 1/8"IPS
K8
Side
Knob
7/8" dia.
tapped 8-32
K9
Switch
Knob
5/8" dia.
tapped 4-40
K10
Switch
Knob
7/8" dia.
tapped 6-32
K11
Switch
Knob
7/8" dia.
tapped 8-32
K12
Side
Knob
1" dia.
tapped 1/4" -27
K7
Side
Knob
7/8" dia.
tapped 12-24
K2
Side
Knob
7/8" dia.
tapped 10-32
K3
Side
Knob
3/4" dia.
tapped 8-32
K4
Finial
7/8" dia.
tapped 12-24
K5
Side
Knob
1 1/8" dia.
tapped 1/4"-27
K6
Side
Knob
7/8" dia.
tapped 12-24
K1
Side
Knob
7/8" dia.
tapped 10-32