Heyco Liquid Tight Cord Grip Torque Recommendations

Heyco^® Brass Cordgrips
NPT Thread
Thread	Cable Range	Lower Part	Compression Nut
Thread	mm	Nm	Nm
1/8" NPT	3.0 - 4.0	5	4
1/8" NPT	4.0 - 6.0	5	2
1/4" NPT	3.5 - 5.0	7	4
	5.0 - 6.5	7	5
	6.5 - 8.0	7	3
3/8" NPT	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
1/2" NPT	6.0 - 8.0	16	10
	8.0 - 11.0	16	9
	11.0 - 15.0	16	5
	8.0 - 15.0	16	5
3/4" NPT	9.5 - 12.5	18	10
	12.5 - 16.0	18	10
	16.0 - 20.5	18	4
	12.5 - 20.5	18	7
1" NPT	14.0 - 17.0	21	5
	17.0 - 21.0	21	4
	21.0 - 25.5	21	4
	17.0 - 25.5	21	6
1-1/4" NPT	20.0 - 24.0	30	10
	24.0 - 28.5	30	8
	28.5 - 33.0	30	9
	24.0 - 33.0	30	12
1-1/2" NPT	29.0 - 33.0	40	11
	33.0 - 37.0	40	14
	37.0 - 41.0	40	14
	33.0 - 41.0	40	22
2" NPT	35.0 - 40.0	48	40
	40.0 - 46.0	48	39
	46.0 - 52.0	48	33
	40.0 - 52.0	48	38

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.

Heyco^® Brass Cordgrips
PG Thread
Thread	Cable Range	Compression Nut
Thread	mm	Nm
PG 7	3.5 - 5.0	4
	5.0 - 6.5	5
	6.5 - 8.0	3
PG 9	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
PG 11	4.0 - 5.5	8
	5.5 - 8.5	7
	8.5 - 12.0	5
	5.5 - 12.0	5
PG 13	6.0 - 8.0	10
	8.0 - 11.0	9
	11.0 - 15.0	5
	8.0 - 15.0	5
PG 16	6.0 - 8.0	10
	8.0 - 11.0	9
	11.0 - 15.0	5
	8.0 - 15.0	5
PG 21	9.5 - 12.5	10
	12.5 - 16.0	10
	16.0 - 20.5	4
	12.5 - 20.5	7
PG 29	16.0 - 19.0	10
	19.0 - 23.0	8
	23.0 - 27.5	8
	19.0 - 27.5	8
PG 36	21.5 - 26.0	40
	26.0 - 30.5	30
	30.5 - 35.0	30
	26.0 - 35.0	30
PG 42	29.0 - 33.0	40
	33.0 - 37.0	30
	37.0 - 42.0	30
	33.0 - 42.0	40
PG 48	32.0 - 37.0	50
	37.0 - 43.0	40
	43.0 - 49.0	40
	37.0 - 49.0	40

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.

Heyco^® Brass Cordgrips
Metric Thread
Thread	Cable Range	Compression Nut
Thread	mm	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
M8 x 1.25	3.0 - 5.0	1
M10 x 1.5	3.0 - 4.0	4
M10 x 1.5	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