HARDLOCK Bearing Nut Standard Dimension Table

Dimensions in millimeters (mm)

Nominal Size Pitch Convex nut Concave nut Common to (1), (2) Overall height Bottom surface squarness (Max) Unit Weight Tightening torque(N.m) *Common to material/strength
d P D B1M b D1 D2 B S g l g
Basic Tolerance Basic Tolerance Basic Tolerance Basic (approx.) Basic Tolerance (approx.) approx. Convex nut Concave nut(Recommended)
M10 0.75 18 0 6 0 3.5 18 0 17 6 0 3 14 9.5 0.05 19 * 16
-0.5 -0.5 -0.5 -0.5
M12 1 22 0 6 0 3.5 22 0 17 6 0 3 18 9.5 17 * 16
-0.5 -0.5 -0.5 -0.5
M15 1 25 0 7 0 4.5 25 0 21 7 0 4 21 11.5 23 * 28
-0.5 -0.5 -0.5 -0.5
M17 1 28 0 7 0 4.5 28 0 24 7 0 4 24 11.5 29 * 37
-0.5 -0.5 -0.5 -0.5
M20 1 32 0 8 0 5.5 32 0 26 8 0 4 28 13.5 43 * 55
-0.5 -0.5 -0.5 -0.5
M25 1.5 38 0 10 0 6 38 0 32 10 0 5 34 16 72 * 80
-0.5 -0.5 -0.5 -0.5
M30 1.5 45 0 10 0 6 45 0 38 10 0 5 41 16 103 * 115
-0.5 -0.5 -0.5 -0.5
M35 1.5 52 0 11 0 7 52 0 44 11 0 5 48 18 150 * 130
-0.5 -0.5 -0.5 -0.5
M40 1.5 58 0 9 0 5 58 0 50 12 0 6 53 17 170 * 155
-0.5 -0.5 -0.5 -0.5
M45 1.5 65 0 10 0 6 65 0 56 13 0 6 60 19 240 * 170
-0.5 -0.5 -0.5 -0.5
M50 1.5 70 0 11 0 7 70 0 61 14 0 6 65 21 285 * 200
-0.5 -0.5 -0.5 -0.5
M55 2 75 0 11 0 6 75 0 67 15 0 7 69 21 0.07 310 * 210
-0.5 -0.5 -0.5 -0.5
M60 2 80 0 11 0 6 80 0 73 15 0 7 74 21 340 * 240
-0.5 -0.5 -0.5 -0.5
M65 2 85 0 12 0 7 85 0 79 12 0 7 79 19 330 * 255
-0.5 -0.5 -0.5 -0.5
M70 2 92 0 12 0 7 92 0 85 12 0 8 85 19 390 * 270
-0.5 -0.5 -0.5 -0.5
M75 2 98 0 13 0 8 98 0 90 13 0 8 91 21 480 * 300
-0.5 -0.5 -0.5 -0.5
M80 2 105 0 15 0 10 105 0 95 15 0 8 98 25 660 * 310
-0.5 -0.5 -0.5 -0.5
M85 2 110 0 16 0 11 110 0 102 16 0 8 103 27 760 * 340
-0.5 -0.5 -0.5 -0.5
M90 2 120 0 16 0 11 120 0 108 16 0 10 112 27 940 * 350
-0.5 -0.5 -0.5 -0.5
M95 2 125 0 17 0 12 125 0 113 17 0 10 117 29 1,090 * 380
-0.5 -0.5 -0.5 -0.5
M100 2 130 0 18 0 13 130 0 120 18 0 10 122 31 1,230 * 390
-0.5 -0.5 -0.5 -0.5
M105 2 140 0 18 0 12 140 0 126 18 0 12 130 30 0.1 1,500 * 410
-0.5 -0.5 -0.5 -0.5
M110 2 145 0 19 0 13 145 0 133 19 0 12 135 32 1,600 * 415
-0.5 -0.5 -0.5 -0.5
M115 2 150 0 19 0 13 150 0 137 19 0 12 140 32 1,700 * 420
-0.5 -0.5 -0.5 -0.5
M120 2 155 0 20 0 13 155 0 138 20 0 12 145 33 1,800 * 435
-0.5 -0.5 -0.5 -0.5
M125 2 160 0 21 0 14 160 0 148 21 0 12 150 35 1,900 * 440
-0.5 -0.7 -0.5 -0.7
M130 2 165 0 21 0 14 165 0 149 21 0 12 155 35 2,000 * 450
-0.5 -0.7 -0.5 -0.7
M135 2 175 0 22 0 15 175 0 160 22 0 14 163 37 2,600 * 455
-0.5 -0.7 -0.5 -0.7
M140 2 180 0 22 0 15 180 0 160 22 0 14 168 37 2,700 * 465
-0.5 -0.7 -0.5 -0.7
M145 2 190 0 24 0 16 190 0 171 24 0 14 178 40 3,400 * 470
-0.5 -0.7 -0.5 -0.7
M150 2 195 0 24 0 16 195 0 171 24 0 14 183 40 3,550 * 480
-0.5 -0.7 -0.5 -0.7
M155 3 200 0 25 0 17 200 0 182 25 0 16 186 42 3,800 * 485
-0.5 -0.7 -0.5 -0.7
M160 3 210 0 25 0 17 210 0 182 25 0 16 196 42 4,200 * 500
-0.5 -0.7 -0.5 -0.7
M165 3 210 0 26 0 17 210 0 193 26 0 16 196 43 4,300 * 550
-0.5 -0.7 -0.5 -0.7
M170 3 220 0 26 0 17 220 0 193 26 0 16 206 43 4,750 * 600
-0.5 -0.7 -0.5 -0.7
M180 3 230 0 27 0 18 230 0 203 27 0 18 214 45 5,000 * 700
-0.5 -0.7 -0.5 -0.7
M190 3 240 0 28 0 19 240 0 214 28 0 18 224 47 5,500 * 800
-0.5 -0.7 -0.5 -0.7
M200 3 250 0 29 0 20 250 0 226 29 0 18 234 49 6,300 * 900
-0.5 -0.7 -0.5 -0.7

* External dimensions : JIS B1554(2005)/ISO 2982
* Threads screw tolerances : JIS B0209(2001)/ISO 965 6H
* The left hand thread of the size M12 to M50 will be available.
* The locking effect will not be changed even though the concave nut is installed first. Then, please tighten the concave nut based on the above recommended torque.
* Please be advised that the dimensions or specifications may be subject to change without notice.

HARDLOCK Bearing Nut Special/Thin Type Dimension Table

Dimensions in millimeters (mm)

Nominal Size Pitch Convex nut Convex nut Common to (1), (2) Overall height Bottom surface squarness (Max) Tightening torque(N.m) *Common to material/strength
d P D B1 b D1 D2 B1 S g l
Basic Tolerance Basic Tolerance Basic Tolerance Basic (approx.) Basic Tolerance approx Convex nut Concave nut(Recommended)
M20 1 32 0 6 0 3.5 32 0 26 6 0 4 28 9.5 0.07 * 55
-0.5 -0.5 -0.5 -0.5
M25 1.5 38 0 7 0 3 38 0 32 7 0 5 34 10 * 80
-0.5 -0.5 -0.5 -0.5
M30 1.5 45 0 7 0 3 45 0 38 7 0 5 41 10 * 115
-0.5 -0.5 -0.5 -0.5
M35 1.5 52 0 8 0 4 52 0 44 8 0 5 48 12 * 130
-0.5 -0.5 -0.5 -0.5
M40 1.5 58 0 9 0 5 58 0 50 9 0 6 53 14 * 155
-0.5 -0.5 -0.5 -0.5
M45 1.5 65 0 10 0 6 65 0 56 10 0 6 60 16 * 170
-0.5 -0.5 -0.5 -0.5
M50 1.5 70 0 11 0 7 70 0 61 11 0 6 65 18 * 200
-0.5 -0.5 -0.5 -0.5
M55 2 75 0 11 0 6 75 0 67 11 0 7 69 17 * 210
-0.5 -0.5 -0.5 -0.5
M60 2 80 0 11 0 6 80 0 73 11 0 7 74 17 * 240
-0.5 -0.5 -0.5 -0.5
M65 2 85 0 10 0 5 85 0 79 10 0 7 79 15 * 255
-0.5 -0.5 -0.5 -0.5
M70 2 92 0 10 0 5 92 0 85 10 0 8 85 15 * 270
-0.5 -0.5 -0.5 -0.5
M75 2 98 0 11 0 6 98 0 90 11 0 8 91 17 * 300
-0.5 -0.5 -0.5 -0.5
M80 2 105 0 12.5 0 7.5 105 0 95 12.5 0 8 98 20 * 310
-0.5 -0.5 -0.5 -0.5
M85 2 110 0 13.5 0 8.5 110 0 102 13.5 0 8 103 22 * 340
-0.5 -0.5 -0.5 -0.5
M90 2 120 0 13.5 0 8.5 120 0 108 13.5 0 10 112 22 * 350
-0.5 -0.5 -0.5 -0.5
M95 2 125 0 14 0 9 125 0 113 14 0 10 117 23 * 380
-0.5 -0.5 -0.5 -0.5
M100 2 130 0 15 0 10 130 0 120 15 0 10 122 25 * 390
-0.5 -0.5 -0.5 -0.5

* External dimensions : JIS B1554(2005)/ISO 2982
* Threads screw tolerances : JIS B0209(2001)/ISO 965 6H
* Please consult with us about the availability of the thin type of the size over M105.
* The locking effect will not be changed even though the concave nut is installed first. Then, please tighten the concave nut based on the above recommended torque.
* Please be advised that the dimensions or specifications may be subject to change without notice.

  • [ PRECAUTIONS for use of the thin type of HLB ]

    * Please install the convex nut first.

    * Do not tighten with a driver or a gad.

    * Please refrain from using where it will be applied to a heavy load.

    * Please stop using immeditely if there is any crack.

    It does not deform or break by a spin load, but it is possible to have cracks or break when it is received a repetition load, therefore please stop using or change to standard type.

    *Please take care when you tighten or loosen the convex nut because the B dimension is very thin.