Pg thread usage will eventually be phased out in continental
Europe. A new metric thread standard
(EN 50262) will be phased in as mandatory beginning on March
1, 2001 replacing the Pg thread. Metric electrical threads are
already in use in the UK where they have replaced the (now obsolete
for electrical use) BSP threads.
PG
THREAD DATA CHART:
METRIC Pg ELECTRICAL THREAD DIN 40430 (Stahlpanzerrohr-Gewinde)
Pg
Nominal
Size
Callout
Thread
Form
Type
Major
Diameter
mm
d=D
Pitch
mm
p
Threads
per
inch
tpi
Pitch
Diameter
mm
d2=D2
Minor
Diameter
Male Thd.
d1
Thread
Height
H1
Tap
Drill
Diameter
mm
Pg7
Pg
12.50
1.270
20
11.89
11.28
0.61
11.40
Pg9
Pg
15.20
1.411
18
14.53
13.86
0.67
14.00
Pg11
Pg
18.60
1.411
18
17.93
17.26
0.67
17.25
Pg13.5
Pg
20.40
1.411
18
19.73
19.06
0.67
19.00
Pg16
Pg
22.50
1.411
18
21.83
21.16
0.67
21.25
Pg21
Pg
28.30
1.588
16
27.54
26.78
0.76
26.75
Pg29
Pg
37.00
1.588
16
36.24
35.48
0.76
35.50
Pg36
Pg
47.00
1.588
16
46.24
45.48
0.76
45.50
Pg42
Pg
54.00
1.588
16
53.24
52.48
0.76
52.50
Pg48
Pg
59.30
1.588
16
58.54
57.78
0.76
57.75
For clearance drill diameter: (Pg 7 thru Pg 13.5 add 0.1
mm to major diameter)
For clearance drill diameter: (Pg 16 thru Pg 48 add 0.25
mm to major diameter)
Gage Crib Worldwide, Inc.
6701 Old 28th St SE, Suite B
Grand Rapids, MI 49546-6937
Phone: 001-616-954-6581 • Fax: 001-616-954-6583
Email: gageguy@gagecrib.com
