DIAGRAM # TO ACCOMMODATE THIS HOLE
DRILL SIZE
TAP SIZE
A
Thermostat hole
#22
10-24
B
Thermostat cover screw hole
#22
10-24
C
Air shutter pin holes
1/8" x 3/22" deep
N/A
D
Damper pin hole
#W (.3860")
N/A
E
Door handle holes
3/8"
N/A
F
Secondary air cover screw hole
#22
10-24
G
Air tube screw holes
5/16"
H
Ash lip holes
13/64"
1/4-20
I
Leg bolt holes
5/16"
3/8-16
J
Top tie rod holes
5/16"
N/A
K
Door pin holes
3/16"
N/A
L
Andiron holes
#3 (.2130") x 5/8" deep
1/4-20
M
Griddle tab holes
13/64"
1/4-20
N
Heat shield holes
#22
10-24
DEFIANT IAI DRILL AND TAP KEY