Specification Sheet

NL3 M3 0,5
1,7
2,4
1,5
2,4
1,5
2,0
NL4 M4 0,7
3,8
4,2
3,6
4,2
3,5
3,5
NL5 M5 0,8
7,5
6,8
6,9
6,8
6,8
5,6
NL6 M6 1,0
13
9,7
12,1
9,7
12
8,0
NL8 M8 1,25
32
18
29
18
29
15
NL10 M10 1,5
62
28
57
28
56
23
NL12 M12 1,75
107
40
99
40
97
33
NL14 M14 2,0
170
55
157
55
155
46
NL16 M16 2,0
260
75
240
75
237
62
NL18 M18 2,5
364
92
336
92
331
76
NL20 M20 2,5
510
118
470
118
464
97
NL22 M22 2,5
696 146 642
146
634
120
NL24 M24 3,0
878
169
809
169
800
140
NL27 M27 3,0
1 28 4
221
1183
221
1172
182
NL30 M30 3,5
1750
269
1 6 1 3
269
1596
222
NL33 M33 3,5
2360
333
2173
333
2155
275
NL36 M36 4,0
3043
392
2803
392
2 7 76
324
NL39 M39 4,0
3931
468
3619
468
3589
387
NL42 M42 4,5
4860 538 4476
538
4436
445
NL3 M3 0,5
2,2
3,9
2,3
4,1
NL4 M4 0,7
5,1
6,7
5,3
7,1
NL5 M5 0,8
10,0
10,9
10,3
11,5
NL6 M6 1,0
17, 4
15,4
18
16,3
NL8 M8 1,25
42
28
43
30
NL10 M10 1,5
82
44
85
47
NL12 M12 1,75
142
65
146
68
NL14 M14 2,0
226
89
233
94
NL16 M16 2,0
345
120
355
127
NL18 M18 2,5
483
148
498
156
NL20 M20 2,5
676
188
696
198
NL22 M22 2,5
921 233 948 246
NL24 M24 3,0
1 16 5
270
1199
286
NL27 M27 3,0
1700
352
1749
372
NL30 M30 3,5
2316
430
2386
454
NL33 M33 3,5
3124
532
3213
562
NL36 M36 4,0
4029
626
4145
662
NL39 M39 4,0
5199
748
5346
790
NL42 M42 4,5
6434 860 6617 908
NL3 M3 0,5
2,0
3,2
2,0
3,4
NL4 M4 0,7
4,5
5,6
4,5
5,9
NL5 M5 0,8
8,9
9,1
8,9
9,6
NL6 M6 1,0
15,5
12,9
15,5
13,6
NL8 M8 1,25
37
23
37
25
NL10 M10 1,5
73
37
73
39
NL12 M12 1,75
126
54
126
57
NL14 M14 2,0
201
74
201
78
NL16 M16 2,0
307
100
306
106
NL18 M18 2,5
430
123
429
130
NL20 M20 2,5
602
156
600
165
NL22 M22 2,5
821 194 818 205
NL24 M24 3,0
1036
225
1034
238
NL27 M27 3,0
1514
294
1509
310
NL30 M30 3,5
2064
358
2058
378
NL33 M33 3,5
2782
443
2772
468
NL36 M36 4,0
3589
522
3576
551
NL39 M39 4,0
4632
624
4613
659
NL42 M42 4,5
5731 716 5709 757
99
Torque guidelines
Nord-Lock steel washers with zinc flake coating (Delta Protekt
®
)
Nord-Lock steel washers with electro zinc plated bolt grade 8.8
Cu/C paste = copper/graphite paste (Molykote
®
1000)
Oil = WD40 has been used.
G
F
= Ratio of yield point. When tightening according to
guidelines and with no deviation, this is the pre-stress achieved
expressed as % of yield point.
µ
th
= thread friction coefcient
µ
h
= under head friction coefcient
Thread friction coefficients have theoretical values but are
verified through testing. Under head friction coefficients have
been established by tests.
Torque guidelines for other bolt grades are available through
your local Nord-Lock representative.
Nord-Lock steel washers with non-plated bolt grade 12.9Nord-Lock steel washers with non-plated bolt grade 10.9
1 N = 0,225 lb
1 Nm = 0,738 ft-lb
Oil, G
F
=75%
µ
th
= 0,15, µ
h
= 0 , 1 9
Cu/C paste, G
F
=75%
µ
th
= 0,13, µ
h
= 0 , 1 8
Dry, G
F
=62%
µ
th
= 0,18, µ
h
= 0 , 2
Washer
size
Bolt
size
Pitch
[mm]
Torque
[Nm]
Clamp
load [kN]
Torque
[Nm]
Clamp
load [kN]
Torque
[Nm]
Clamp
load [kN]
Washer
size
Bolt
size
Pitch
[mm]
Oil, G
F
=71%
µ
th
= 0,15, µ
h
= 0 , 1 5
Cu/C paste, G
F
=75%
µ
th
= 0,13, µ
h
= 0 , 1 5
Torque
[Nm]
Clamp load
[kN]
Torque
[Nm]
Clamp load
[kN]
Washer
size
Bolt
size
Pitch
[mm]
Oil, G
F
=71%
µ
th
= 0,15, µ
h
= 0 , 1 3
Cu/C paste, G
F
=75%
µ
th
= 0,13, µ
h
= 0 , 1 4
Torque
[Nm]
Clamp load
[kN]
Torque
[Nm]
Clamp load
[kN]