2011-09 NL Dimensions&Torque EN-METRIC
2011-09 NL Dimensions&Torque EN-METRIC
2011-09 NL Dimensions&Torque EN-METRIC
Dimension chart
Washer size Bolt size øi øo Thickness T Min. package Approx. weight
[mm] [mm] [mm] [pairs] kg / 100 pairs
Metric UNC
Nord-Lock steel washers with electro zinc plated bolt grade 8.8
Nord-Lock steel washers with non-plated bolt grade 10.9 Nord-Lock steel washers with non-plated bolt grade 12.9
NL3 M3 0,5 1,8 3,2 1,6 3,4 NL3 M3 0,5 2,0 3,9 1,7 4,1
NL4 M4 0,7 4,1 5,6 3,6 5,9 NL4 M4 0,7 4,6 6,7 4,0 7,1
NL5 M5 0,8 8,1 9,1 7,0 9,6 NL5 M5 0,8 9,1 10,9 7,7 11,5
NL6 M6 1,0 14,1 12,9 12,3 13,6 NL6 M6 1,0 15,8 15,4 13,5 16,3
NL8 M8 1,25 34 23 30 25 NL8 M8 1,25 38 28 32 30
NL10 M10 1,5 67 37 58 39 NL10 M10 1,5 75 44 64 47
NL12 M12 1,75 115 54 99 57 NL12 M12 1,75 128 65 109 68
NL14 M14 2,0 183 74 158 78 NL14 M14 2,0 204 89 174 94
NL16 M16 2,0 279 100 240 106 NL16 M16 2,0 311 120 263 127
NL18 M18 2,5 391 123 337 130 NL18 M18 2,5 437 148 370 156
NL20 M20 2,5 547 156 470 165 NL20 M20 2,5 610 188 515 198
NL22 M22 2,5 745 194 639 205 NL22 M22 2,5 831 233 699 246
NL24 M24 3,0 942 225 809 238 NL24 M24 3,0 1 052 270 887 286
NL27 M27 3,0 1375 294 1176 310 NL27 M27 3,0 1533 352 1288 372
NL30 M30 3,5 1875 358 1608 378 NL30 M30 3,5 2091 430 1761 454
NL33 M33 3,5 2526 443 2157 468 NL33 M33 3,5 2 815 532 2362 562
NL36 M36 4,0 3259 522 2788 551 NL36 M36 4,0 3633 626 3053 662
NL39 M39 4,0 4203 624 3 588 659 NL39 M39 4,0 4683 748 3925 790
NL42 M42 4,5 5202 716 4445 757 NL42 M42 4,5 5799 860 4866 908
Torque guidelines for other bolt grades are available through your local Nord-Lock representative.
Dimension chart
Washer size Bolt size øi øo Thickness T Min. Approx.
[mm] [mm] [mm] package weight NL3ss – N L24ss
Metric UNC [pairs] kg / 100 pairs Øo ± 0,2 mm
NL27ss – N L42ss
Øo ± 0,3 mm Øo
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 NL45 ss – N L80ss
Øo + 0,0 / -2,0 mm
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 NL3ss – N L24ss
NL5spss M5 #10 5,4 10,8 2,2 200 0,11 T ± 0,25 mm
NL6ss M6 6,5 10,8 2,2 200 0,09 NL27ss – N L42ss
NL6spss M6 6,5 13,5 2,0 200 0,16 T + 0,0 / -0,5 mm T
NL1/4”ss 1/4” 7,2 11,5 2,2 200 0,09 NL45ss – N L80ss
NL1/4”spss 1/4” 7,2 13,5 2,2 200 0,15 T ± 0,75 mm
NL8ss M8 5/16” 8,7 13,5 2,0 200 0,12
NL8spss M8 5/16” 8,7 16,6 2,0 200 0,22
NL3/8”ss 3/8” 10,3 16,6 2,0 200 0,19 • Please consult our website for current dimensions and 2D / 3D CAD
NL3/8”spss 3/8” 10,3 21,0 2,0 200 0,38 models: www.nord-lock.com/cad
NL10ss M10 10,7 16,6 2,0 200 0,18 • Information regarding changes in materials and dimensions are
NL10spss M10 10,7 21,0 2,0 200 0,37 available through www.nord-lock.com/pcn
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 Torque guidelines
NL1/2”ss 1/2” 13,5 19,5 2,0 200 0,24 Nord-Lock stainless steel washers with stainless steel bolt,
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
lubricated with GTP600
NL14spss M14 9/16” 15,2 30,7 3,2 100 1,31
A4-70, GF = 65% A4-80, GF = 65%
NL16ss M16 5/8” 17,0 25,4 3,0 100 0,59 µth = 0,14, µb = 0,15 µth = 0,14, µb = 0,15
NL16spss M16 5/8” 17,0 30,7 3,2 100 1,13 Washer Bolt Pitch Torque Clamp load Torque Clamp load
size size [mm] [Nm] [kN] [Nm] [kN]
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 ss M3 0,5 0,9 1,5 1,2 2,0
NL3/4”spss 3/4” 20,0 39,0 3,2 100 2,10 NL4 ss M4 0,7 2,0 2,6 2,7 3,4
NL20ss M20 21,4 30,7 3,0 100 0,82 NL5 ss M5 0,8 3,9 4,1 5,3 5,5
NL20spss M20 21,4 39,0 3,2 100 2,06 NL6 ss M6 1,0 6,9 5,9 9,2 7,8
NL22ss M22 7/8” 23,4 34,5 3,2 100 1,23 NL8 ss M8 1,25 17 11 22 14
NL22spss M22 7/8” 23,4 42,0 3,2 50 2,23 NL10 ss M10 1,5 33 17 43 23
NL24ss M24 25,3 39,0 3,2 100 1,52 NL12 ss M12 1,75 56 25 75 33
NL24spss M24 25,3 48,5 3,2 50 3,50 NL14 ss M14 2,0 89 34 119 45
NL1”ss 1” 27,9 39,0 3,2 100 1,42 NL16 ss M16 2,0 136 46 181 61
NL1”spss 1” 27,9 48,5 3,2 50 3,22 NL18 ss M18 2,5 191 56 254 75
NL27ss M27 28,4 42,0 6,8 50 3,45 NL20 ss M20 2,5 267 72 356 95
NL27spss M27 28,4 48,5 6,8 25 5,85 NL22 ss M22 2,5 364 89 485 118
NL30ss M30 1 1/8” 31,4 47,0 6,8 50 4,43 NL24 ss M24 3,0 460 103 613 137
NL30spss M30 1 1/8” 31,4 58,5 6,8 25 9,53 NL27 ss M27 3,0 671 134 895 179
NL33ss M33 1 1/4” 34,4 48,5 6,8 25 4,25 NL30 ss M30 3,5 915 164 1 220 219
NL36ss M36 1 3/8” 37,4 55,0 6,8 25 5,96 NL36ss M36 4,0 1 591 239 2121 319
NL39ss M39 1 1/2” 40,4 58,5 6,8 25 6,74
NL42ss M42 43,2 63,0 6,8 25 7,96
GTP600 = graphite lubricant, GF = ratio of yield point
NL45ss M45 1 3/4” 46,2 70,0 6,8 25 10,20
µth = thread friction, µb = washer friction
NL48ss M48 49,6 75,0 6,8 25 12,00
NL52ss M52 2” 53,6 80,0 9,0 1 20,10
NL56ss 21,30
1 N = 0,225 lb
M56 2 1/4” 59,1 85,0 9,0 1
NL60ss 23,50
1 Nm = 0,738 ft-lb
M60 63,1 90,0 9,0 1
NL64ss M64 2 1/2” 67,1 95,0 9,0 1 25,80 Torque guidelines for other bolt grades are available through
NL68ss M68 71,1 100,0 9,0 1 28,20 your local Nord-Lock representative.
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 83,1 115,0 9,0 1 36,00
254 SMO® is a high performance austenitic stainless steel (according to EN 1.4547) NL3 ss-254
with greater mechanical strength and resistance against corrosion than most – N L8ss-254
Ø i ± 0,1 mm
austenitic stainless steel grades. The material is resilient against pitting and crevice
corrosion due to high contents of chromium, nickel, molybdenum and nitrogen. NL10 ss-254 Øi
– N L39ss-254
Nord-Lock 254 SMO® washers are specially designed for chloride rich processes Ø i ±0,2 mm
and salt water solutions / atmospheres, i.e. environments where stainless steel
washers made of EN 1.4404 are not suitable.