Specification Sheet

Ø
o
Ø
i
T
NL3 ss – NL8ss
Ø
i
± 0 ,1 m m
NL10 ss – N L42s s
Ø
i
± 0 ,2 mm
NL45ss – NL80ss
Ø
i
+0,5 / -0,0 mm
NL3ss – NL24ss
Ø
o
± 0,2 mm
NL 27ss – N L42s s
Ø
o
± 0,3 mm
NL 45 ss – N L 80 ss
Ø
o
+0,0 / -2,0 mm
NL3ss – NL24ss
T ± 0,25 mm
NL27ss – NL42ss
T +0,0 / -0,5 mm
NL45ss – NL80ss
T ± 0,75 mm
NL3ss M3 #5 3,4 7,0 2,2 200 0,04
NL3,5ss M3,5 #6 3,9 7,6 2,2 200 0,04
NL3,5spss M3,5 #6 3,9 9,0 2,2 200 0,07
NL4ss M4 #8 4,4 7,6 2,2 200 0,04
NL4spss M4 #8 4,4 9,0 2,2 200 0,07
NL5ss M5 #10 5,4 9,0 2,2 200 0,06
NL5spss M5 #10 5,4 10,8 2,2 200 0,11
NL6ss M6 6,5 10,8 2,2 200 0,09
NL6spss M6 6,5 13,5 2,0 200 0,16
NL1/4”ss 1/4” 7,2 11,5 2,2 200 0,09
NL1/4”spss 1/4” 7,2 13,5 2,2 200 0,15
NL8ss M8 5/16” 8,7 13,5 2,0 200 0,12
NL8spss M8 5/16” 8,7 16,6 2,0 200
0,23
NL3/8”ss 3/8” 10,3 16,6 2,0 200 0,19
NL3/8”spss 3/8” 10,3 21,0 2,0 200 0,38
NL10ss M10 10,7 16,6 2,0 200 0,18
NL10spss M10 10,7 21,0 2,0 200 0,37
NL11ss M11 7/16” 11,4 18,5 2,2 200 0,26
NL12ss M12 13,0 19,5 2,0 200 0,23
NL12spss M12 13,0 25,4 3,0 100 0,82
NL1/2”ss 1/2” 13,5 19,5 2,0 200
0,22
NL1/2”spss 1/2” 13,5 25,4 3,2 100 0,80
NL14ss M14 9/16” 15,2 23,0 3,0 100 0,49
NL14spss M14 9/16” 15,2 30,7 3,2 100 1,31
NL16ss M16 5/8” 17,0 25,4 3,0 100 0,59
NL16spss M16 5/8” 17,0 30,7 3,2 100 1,13
NL18ss M18 19,5 29,0 3,2 100 0,80
NL18spss M18 19,5 34,5 3,2 100 1,56
NL3/4”ss 3/4” 20,0 30,7 3,2 100 0,96
NL3/4”spss 3/4” 20,0 39,0 3,2 100 2,10
NL20ss M20 21,4 30,7 3,0 100 0,82
NL20spss M20 21,4 39,0 3,2 100 2,06
NL22ss M22 7/8” 23,4 34,5 3,2 100 1,23
NL22spss M22 7/8” 23,4 42,0 3,2 50
2,22
NL24ss M24 25,3 39,0 3,2 100
1,59
NL24spss M24 25,3 48,5 3,2 50 3,50
NL1”ss 1” 27,9 39,0 3,2 100 1,42
NL1”spss 1” 27,9 48,5 3,2 50
2,79
NL27ss M27 28,4 42,0 6,8 50 3,45
NL27spss M27 28,4 48,5 6,8 25
5,34
NL30ss M30 1 1/8” 31,4 47,0 6,8 50
4,49
NL30spss M30 1 1/8” 31,4 58,5 6,8 25
9,18
NL33ss M33 1 1/4” 34,4 48,5 6,8 25
4,28
NL36ss M36 1 3/8” 37,4 55,0 6,8 25 5,96
NL39ss M39 1 1/2” 40,4 58,5 6,8 25 6,74
NL42ss M42 43,2 63,0 6,8 25
7,5 0
NL45ss M45 1 3/4” 46,2 70,0 6,8 25 10,20
NL48ss M48 49,6 75,0 6,8 25 12,00
NL52ss M52 2”
53,6 80,0 9,0 1
18,04
NL56ss M56 2 1/4” 59,1 85,0 9,0 1 21,30
NL60ss M60 63,1 90,0 9,0 1
23,50
NL64ss M64 2 1/2” 67,1 95,0 9,0 1 25,80
NL68ss M68 71,1 100,0 9,0 1 28,20
NL72ss M72 75,1 105,0 9,0 1 30,70
NL76ss M76 3” 79,1 110,0 9,0 1 33,30
NL80ss M80 3 1/8” 83,1 115,0 9,0 1 36,00
N L 3 s s M3 0,5
0,8
1,5
1,1
2,0
NL 4 ss M4 0,7
1,8
2,6
2,4
3,4
NL 5 s s M5 0,8
3,6
4,1
4,8
5,5
NL 6 ss M6 1,0
6,3
5,9
8,4
7,8
NL 8 s s M8 1,25
15
11
20
14
NL10 s s M10 1,5
30
17
39
23
NL12 ss M12 1,75
51
25
68
33
NL14 ss M14 2,0
81
34
108
45
NL16 ss M16 2,0
124
46
165
61
NL18 ss M18 2,5
173
56
231
75
N L 20 ss M20 2,5
243
72
323
95
NL 2 2 ss M22 2,5
330 89 440 118
N L 24 s s M24 3,0
418
103
557
137
N L 27 ss M27 3,0
609
134
812
179
N L 3 0 s s M30 3,5
831
164
1108
219
NL36ss M36 4,0
1444
239
1925
319
Nord-Lock stainless steel washers
EN 1.4404 (AISI 316L) or equivalent, surface hardened
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.
EN 1.4404 is an austenitic chromium-nickel stainless steel containing molybdenum.
This stainless steel also has extra low carbon content in order to reduce the risk
of chromium-carbide precipitation. EN 1.4404 is one of the most commonly used
stainless steel grades and Nord-Lock washers made of EN 1.4404 are suitable for
most applications where no chlorides or acids are present.
Cu/C paste =
Copper/graphite paste (Molykote
®
1000)
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
1 N = 0,225 lb
1 Nm = 0,738 ft-lb
Washer size Bolt size ø
i
[mm]
ø
o
[mm]
Thickness T
[mm]
Min.
package
[pairs]
Approx.
weight
kg / 100 pairs
Metric UNC
A4-70, Cu/C paste,
G
F
=65%, µ
th
= 0,13, µ
h
= 0 , 1 3
A 4 - 8 0 , Cu / C p a s t e ,
G
F
=65%, µ
th
= 0,13, µ
h
= 0 , 1 3
Washer
size
Bolt
size
Pitch
[mm]
Torque
[Nm]
Clamp load
[kN]
Torque
[Nm]
Clamp load
[kN]
• Please consult our website for current dimensions and 2D / 3D CAD
models: www.nord-lock.com/cad
10
Nord-Lock washers made of stainless steel are standard stock items,
yet subject to prior sale.
Torque guidelines
Nord-Lock stainless steel washers with stainless steel bolt,
lubricated with copper/graphite paste (Molykote
®
1000).
Dimension chart