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Heyco® Brass Corgrips Torque Chart

  • NPT Cordgrip
  • PG Cordgrip
  • Metric Cordgrip

NPT Cordgrip

Thread
Cable Range
Lower Part
Compression Nut 1)
(mm)
(Nm)
Md (Nm)
NPT 1/8"
3.0
-
4.0
5
4
4.0
-
6.0
5
2
NPT 1/4"
3.5
-
5.0
7
4
5.0
-
6.5
7
5
6.5
-
8.0
7
3
NPT 3/8"
3.5
-
4.5
11
7
4.5
-
6.0
11
6
6.0
-
8.0
11
5
8.0
-
10.5
11
3
6.0
-
10.5
11
4
NPT 1/2"
6.0
-
8.0
16
10
8.0
-
11.0
16
9
11.0
-
15.0
16
5
8.0
-
15.0
16
5
NPT 3/4"
9.5
-
12.5
18
10
12.5
-
16.0
18
10
16.0
-
20.5
18
4
12.5
-
20.5
18
7
NPT 1"
14.0
-
17.0
21
5
17.0
-
21.0
21
4
21.0
-
25.5
21
4
17.0
-
25.5
21
6
NPT 1 1/4"
20.0
-
24.0
30
10
24.0
-
28.5
30
8
28.5
-
33.0
30
9
24.0
-
33.0
30
12
NPT 1 1/2"
29.0
-
33.0
40
11
33.0
-
37.0
40
14
37.0
-
41.0
40
14
33.0
-
41.0
40
22
NPT 2"
35.0
-
40.0
48
40
40.0
-
46.0
48
39
46.0
-
52.0
48
33
40.0
-
52.0
48
38
1) The specified torques for compression nuts are maximum values. These nuts should be tightened until the torque specified in the table is reached OR until the sealing insert protrudes slightly over the compression nut. Refer to assembly diagram.

PG Cordgrip

Thread
Cable Range
Compression Nut 1)
(mm)
Md (Nm)
Pg7
3.5
-
5.0
4
5.0
-
6.5
5
6.5
-
8.0
3
Pg9
3.5
-
4.5
7
4.5
-
6.0
6
6.0
-
8.0
5
8.0
-
10.5
3
6.0
-
10.5
4
Pg11
4.0
-
5.5
8
5.5
-
8.5
7
8.5
-
12.0
5
5.5
-
12.0
5
Pg13
6.0
-
8.0
10
8.0
-
11.0
9
11.0
-
15.0
5
8.0
-
15.0
5
Pg16
6.0
-
8.0
10
8.0
-
11.0
9
11.0
-
15.0
5
8.0
-
15.0
5
Pg21
9.5
-
12.5
10
12.5
-
16.0
10
16.0
-
20.5
4
12.5
-
20.5
7
Pg29
16.0
-
19.0
10
19.0
-
23.0
8
23.0
-
27.5
8
19.0
-
27.5
8
Pg36
21.5
-
26.0
40
26.0
-
30.5
30
30.5
-
35.0
30
26.0
-
35.0
30
Pg42
29.0
-
33.0
40
33.0
-
37.0
30
37.0
-
42.0
30
33.0
-
42.0
40
Pg48
32.0
-
37.0
50
37.0
-
43.0
40
43.0
-
49.0
40
37.0
-
49.0
40
1) The specified torques are maximum values for compression nuts. These nuts should be tightened until the torque specified in the table is reached OR until the sealing insert protrudes slightly over the compression nut. Intermediate connecting pieces (lower part of cable gland) and lock nuts should be tightened with the greatest torque for the respective thread size and protected against inadvertent loosening. Refer to assembly diagram.

Metric Cordgrip

Thread
Cable Range
Compression Nut 1)
(mm)
Md (Nm)
M6 x 1
2.0
-
2.5
2
2.5
-
3.0
1
2.0
-
3.5
1
M8 x 1.25
2.5
-
3.5
2
3.0
-
5.0
1
M10 x 1.5
3.0
-
4.0
4
4.0
-
6.0
2
M12 x 1.5
3.5
-
5.0
4
5.0
-
6.5
5
6.5
-
8.0
3
M16 x 1.5
3.5
-
4.5
7
4.5
-
6.0
6
6.0
-
8.0
5
8.0
-
10.5
3
6.0
-
10.5
4
M20 x 1.5
6.0
-
8.0
10
8.0
-
11.0
9
11.0
-
15.0
5
8.0
-
15.0
5
M25 x 1.5
9.5
-
12.5
10
12.5
-
16.0
10
16.0
-
20.5
4
12.5
-
20.5
7
M32 x 1.5
17.0
-
21.0
4
21.0
-
25.5
4
17.0
-
25.5
6
M40 x 1.5
20.0
-
24.0
10
24.0
-
28.5
8
28.5
-
33.0
9
24.0
-
33.0
12
M50 x 1.5
29.0
-
33.0
11
33.0
-
37.0
14
37.0
-
42.0
14
33.0
-
42.0
22
M63 x 1.5
35.0
-
40.0
40
40.0
-
46.0
39
46.0
-
52.0
33
40.0
-
52.0
38
M75 x 1.5
45.0
-
50.0
53
50.0
-
56.0
42
56.0
-
63.0
43
50.0
-
63.0
50
1) The specified torques are maximum values for compression nuts. These nuts should be tightened until the torque specified in the table is reached OR until the sealing insert protrudes slightly over the compression nut. Intermediate connecting pieces (lower part of cable gland) and lock nuts should be tightened with the greatest torque for the respective thread size and protected against inadvertent loosening.
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