Precision Locknuts

Please select
YSLK

YSLK

YSLK locknut uses steel’s elasticity characteristics to securely fix the locknut in the axial direction. This product is especially suited to space restricted applications, or high contamination working environments where the nut could potentially become loosened more easily.

More
  • Material Composition:SCM440(42CrMo4)

  • Hardness:HRC28° ~32°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSLK YSLK
Thread D h g t n-m c n-øb MAX Nm
YSLK-M16x1.5P 34 14 4 2 2-M4 24 2-ø4 3.5
YSLK-M17x1.0P 37 16 26
YSLK-M18x1.5P 38 28
YSLK-M20x1.0P 40 30
YSLK-M20x1.5P
YSLK-M25x1.5P 45 18 5 35 2-ø5
YSLK-M30x1.5P 48 39
YSLK-M35x1.5P 53 44
YSLK-M40x1.5P 58 20 6 2.5 49
YSLK-M45x1.5P 68 57 2-ø6
YSLK-M50x1.5P 70 60
YSLK-M55x1.5P 75 22 7 3 65
YSLK-M55x2.0P
YSLK-M60x1.5P 84 2-M5 72 4.5
YSLK-M60x2.0P
YSLK-M65x1.5P 88 77
YSLK-M65x2.0P
YSLK-M70x1.5P 95 24 8 3.5 82 2-ø7
YSLK-M70x2.0P
YSLK-M75x1.5P 100 6-M5 87
YSLK-M75x2.0P
YSLK-M80x2.0P 110 6-M6 95 2-ø8 8
YSLK-M85x2.0P 115 100
YSLK-M90x2.0P 120 26 10 4 105
YSLK-M95x2.0P 125 110
YSLK-M100x2.0P 130 115
YSLK-M105x2.0P 135 28 120
YSLK-M110x2.0P 140 125
YSLK-M115x2.0P 145 130
YSLK-M120x2.0P 155 30 12 5 136
YSLK-M125x2.0P 160 140
YSLK-M130x2.0P 165 148
YSLK-M135x2.0P 170 32 153
YSLK-M140x2.0P 180 160 2-ø10
YSLK-M145x2.0P 185 165
YSLK-M150x2.0P 190 170
YSLK-M155x2.0P 195 34 14 6 6-M8 175 18
YSLK-M160x3.0P 205 178
YSLK-M165x3.0P 210 184
YSLK-M170x3.0P 215 193
YSLK-M180x3.0P 230 36 16 7 205
YSLK-M190x3.0P 240 215
YSLK-M200x3.0P 245 38 223
YSLR

YSLR

YSLR locknut uses steel’s elasticity characteristics to securely fix the locknut in the radial direction.
This type of nut is thinner and suited to more narrow applications. The design is very simple and easy to lock. This type of nut is not suitable for high precision requirements as it is more difficult to assure the perpendicularity of the nut at this size.

More
  • Material Composition:SCM440(42CrMo4)

  • Hardness:HRC28° ~32°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSLR YSLR
Thread D h g t d n-m MAX Nm
YSLR-M12 x 1.0P 24 12 4 2 19 2-M4 8
YSLR-M14 x 1.0P 26 21
YSLR-M15 x 1.0P 30 25
YSLR-M17 x 1.0P 32 27 2-M5
YSLR-M18 x 1.0P
YSLR-M20 x 1.0P 35 30
YSLR-M22 x 1.5P
YSLR-M25 x 1.5P 40 5 35 2-M6
YSLR-M30 x 1.5P 45 40
YSLR-M32 x 1.5P 46 41
YSLR-M35 x 1.5P 50 45
YSLR-M38 x 1.5P 52 47
YSLR-M40 x 1.5P 55 6 2.5 49
YSLR-M42 x 1.5P 56 50
YSLR-M45 x 1.5P 60 54
YSLR-M50 x 1.5P 65 59
YSLR-M52 x 1.5P 67 61
YSLR-M55 x 2.0P 75 15 7 3 68 2-M8 18
YSLR-M60 x 2.0P 80 73
YSLR-M65 x 2.0P 85 78
YSLR-M70 x 2.0P 90 8 3.5 82
YSLR-M75 x 2.0P 95 87
YSLR-M80 x 2.0P 105 97
YSLR-M85 x 2.0P 110 102
YSLR-M90 x 2.0P 115 10 4 106
YSLR-M95 x 2.0P 120 111
YSLR-M100 x 2.0P 125 116
YSLR-M105 x 2.0P 130 20 12 5 119
YSLR-M110 x 2.0P 135 124
YSLR-M115 x 2.0P 140 129
YSLR-M120 x 2.0P 145 134
YSLR-M125 x 2.0P 150 139
YSLR-M130 x 2.0P 155 144
YSLR-M135 x 2.0P 165 14 6 152 2-M10 35
YSLR-M140 x 2.0P 170 157
YSLR-M145 x 2.0P 175 162
YSLR-M150 x 2.0P 180 167
YSAM

YSAM

YSAM locknut uses steel’s elasticity characteristics to securely fix the locknut in the axial direction.

More
  • Material Composition:SCM440(42CrMo4)

  • Hardness:HRC28° ~32°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Grinding

  • Run Out:0.002mm

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSAM YSAM
Thread D h n-m n-øb c MAX Nm
YSAM-
M15x1.0P
30 18 4-M5 4-ø4 22 4.5
YSAM-
M17x1.0P
32 24
YSAM-
M20x1.0P
38 4-M6 29 8
YSAM-
M25x1.5P
45 20 4-ø5 36
YSAM-
M30x1.5P
52 43
YSAM30/65-
M30x1.5P
65 30 4-ø6 45
YSAM-
M35x1.5P
22 56
YSAM35/58-
M35x1.5P
58 20 4-ø5 49
YSAM-
M40x1.5P
65 22 4-ø6 56
YSAM40/85-
M40x1.5P
85 32 58
YSAM-
M45x1.5P
70 22 6-M6 6-ø6 61
YSAM-
M50x1.5P
75 25 66
YSAM-
M55x2.0P
85 26 6-M8 73 18
YSAM-
M60x2.0P
90 80
YSAM-
M65x2.0P
100 6-ø8 88
YSAM-
M70x2.0P
28
YSAM-
M75x2.0P
115 30 6-M10 100 35
YSAM-
M80x2.0P
110 96
YSAM-
M85x2.0P
115 100
YSAM-
M90x2.0P
130 32 116
YSAM-
M100x2.0P
30 8-M10 8-ø8
YSAM-
M110x2.0P
140 126
YSAM-
M120x2.0P
155 140
YSAM-
M130x2.0P
165 150
YSMSW

YSMSW

YSMSW locknut uses steel’s elasticity characteristics to securely fix the locknut in the axial direction. This type of nut is thicker and the outer diameter is larger, making this nut suitable for heavier axial loads.

More
  • Material Composition:SCM440(42CrMo4)

  • Hardness:HRC28° ~32°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSMSW YSMSW
Thread D h h1 g t d n-m MAX Nm
YSMSW 20/28 -M20x1.5P 42 28 11 6 2.5 38 2-M4 3.5
YSMSW 20/40 -M20x1.5P 52 40 7 3 42
YSMSW 25/28 -M25x1.5P 47 28 43
YSMSW 25/40 -M20x1.5P 62 40 8 3.5 47
YSMSW 30/28 -M30x1.5P 52 28 7 3 48
YSMSW 30/44 -M30x1.5P 68 44 8 3.5 52
YSMSW 35/28 -M35x1.5P 60 28 53
YSMSW 35/44 -M35x1.5P 73 44 60
YSMSW 40/28 -M40x1.5P 65 28 58
YSMSW 40/44 -M40x1.5P 75 44 62
YSMSW 45/28 -M45x1.5P 70 28 63
YSMSW 45/44 -M45x1.5P 90 44 10 4 70
YSMSW 50/32 -M50x1.5P 75 32 8 3.5 68
YSMSW 50/46 -M50x1.5P 95 46 10 4 75
YSMSW 55/46 -M55x1.5P 100 12 80 2-M5 4.5
YSMSW 60/46 -M60x1.5P 85
YSMSW 65/46 -M65x1.5P 110 90
YSMSW 70/46 -M70x1.5P 115 95
YSFT

YSFT

YSFT locks the threads from a 30° angle direction with three point locks. The advantages of this design are that the brass locking threads can fully contact the male threads, thus ensuring the assembled accuracy.

More
  • Material Composition:SCM440(42CrMo4)

  • Hardness:HRC28° ~32°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Grinding

  • Run Out:0.002mm

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSFT YSFT
Thread D h g t d d1 d2 M n-m MAX Nm
YSFT-
M10x0.75P
28 14 4 2 23 11 21 24 3 - M4 4.5
YSFT-
M12x1.0P
30       25 13 23 27 3 - M5
YSFT-
M15x1.0P
33 16     28 16 26 30
YSFT-
M17x1.0P
37 18 5 1.5 33 18 29 34 3 - M6 8
YSFT-
M20x1.0P
40 2 35 21 32 36
YSFT-
M25x1.5P
44 20 39 26 36 41
YSFT-
M30x1.5P
49 44 32 41 46
YSFT-
M35x1.5P
54 22 49 38 46 50
YSFT-
M40x1.5P
65 6 2.5 59 42 56 60
YSFT-
M45x1.5P
70 64 48 61 65
YSFT-
M50x1.5P
75 25 7 3 68 52 65 70
YSFT-
M55x2.0P
85 78 58 74 80 3 - M8 18
YSFT-
M60x2.0P
90 26 8 3.5 82 62 78 85
YSFT-
M65x2.0P
95 28 87 68 83 90
YSFT-
M70x2.0P
100 92 72 88 95
YSFT-
M75x2.0P
105 97 77 93 100
YSFT-
M80x2.0P
110 32 100 83 98 -
YSFT-
M85x2.0P
120 10 4 110 88 107 - 3 - M10 35
YSFT-
M90x2.0P
125 115 93 112 -
YSFT-
M95x2.0P
130 120 98 117 -
YSFT-
M100x2.0P
135 125 103 122 -
YSFT-
M110x2.0P
145 134 112 132 -
YSFT-
M120x2.0P
155 144 122 142 -
YSFT-
M130x2.0P
165 12 5 154 132 152 -
YSFT-
M140x2.0P
175 14 164 142 162 -
YSFT-
M150x2.0P
185 174 152 172 -
YSFT-
M160x3.0P
195 184 162 182 -
YSFT-
M170x3.0P
205 194 172 192 -
YSFT-
M180x3.0P
215 16 204 182 202 -
YSFT-
M190x3.0P
225 214 192 212 -
YSFT-
M200x3.0P
235 18 224 202 222 -
YSFTA

YSFTA

YSFTA uses the same locking method as the YSFT locknut, but this nut has wrench holes on the radius side and back surface side, making it easy for different assembly environment requirements.

More
  • Material Composition:SCM440(42CrMo4)

  • Hardness:HRC28° ~32°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Grinding

  • Run Out:0.002mm

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSFTA YSFTA
Thread D h d d1 c c1 n-øb n-øb1 n-m MAX Nm
YSFTA-M25x1.5P 42 20 35 26 32.5 11 6-ø4.3 6-ø4 3-M6 8
YSFTA-M30x1.5P 48 40 32 40.5 6-ø5
YSFTA-M35x1.5P 53 47 38 45.5
YSFTA-M40x1.5P 58 22 52 42 50.5 12
YSFTA-M45x1.5P 68 58 48 58 6-ø6
YSFTA-M50x1.5P 70 24 63 52 61.5 13
YSFTA-M55x1.5P 75 70 58 66.5
YSFTA-M60x1.5P 84 75 62 74.5 6-ø5.3 3-M8 18
YSFTA-M65x1.5P 88 25 80 68 78.5
YSFTA-M70x1.5P 95 26 86 72 85 14 6-ø8
YSFTA-M75x1.5P 100 91 77 88 13 6-ø6.4
YSFTA-M80x2.0P 110 30 97 83 95 16
YSFTA-M85x2.0P 115 32 102 88 100 17 3-M10 35
YSFTA-M90x2.0P 120 110 93 108
YSFTA-M95x2.0P 125 114 98 113
YSFTA-M100x2.0P 130 120 103 118
YSFTA-M110x2.0P 140 132 112 128
YSFTA-M120x2.0P 155 142 122 140
YSFTA-M130x3.0P 165 156 132 153
YSFTA-M140x3.0P 180 166 142 165 6-ø10
YSFTA-M150x3.0P 190 180 152 175
YSFTA-M160x3.0P 205 190 162 185 6-ø8.4
YSFTA-M170x3.0P 215 205 172 195
YSFTA-M180x3.0P 230 215 182 210
YSFTA-M190x3.0P 240 225 192 224
YSFTA-M200x3.0P 245 237 202 229
AN

AN

Simple structure AN locknut, simultaneously machined threading and end face, ensuring minimum deviation error.

More
  • Material Composition:S45C(C45E4)

  • Hardness:HRC26° ~28°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
AN AN
Thread D h g t d
AN 0-M10x0.75P 18 4 3 2 13.5
AN 1-M12x1.0P 22 17
AN 2-M15x1.0P 25 5 4 21
AN 3-M17x1.0P 28 24
AN 4-M20x1.0P 32 6 26
AN 5-M25x1.5P 38 7 5 32
AN 6-M30x1.5P 45 38
AN 7-M35x1.5P 52 8 44
AN 8-M40x1.5P 58 9 6 2.5 50
AN 9-M45x1.5P 65 10 56
AN 10-M50x1.5P 70 11 61
AN 11-M55x2.0P 75 7 3 67
AN 12-M60x2.0P 80 73
AN 13-M65x2.0P 85 12 79
AN 14-M70x2.0P 92 8 3.5 85
AN 15-M75x2.0P 98 13 90
AN 16-M80x2.0P 105 15 95
AN 17-M85x2.0P 110 16 102
AN 18-M90x2.0P 120 10 4 108
AN 19-M95x2.0P 125 17 113
AN 20-M100x2.0P 130 18 120
AN 21-M105x2.0P 140 12 5 126
AN 22-M110x2.0P 145 19 133
AN 23-M115x2.0P 150 137
AN 24-M120x2.0P 155 20 138
AN 25-M125x2.0P 160 21 148
AN 26-M130x2.0P 165 149
AN 27-M135x2.0P 175 22 14 6 160
AN 28-M140x2.0P 180
AN 29-M145x2.0P 190 24 172
AN 30-M150x2.0P 195 171
AN 31-M155x2.0P 200 25 16 7 182
AN 32-M160x3.0P 210
AN 33-M165x3.0P 26 193
AN 34-M170x3.0P 220
AN 36-M180x3.0P 230 27 18 8 203
AN 38-M190x3.0P 240 28 214
AN 40-M200x3.0P 250 29 226
YSRN

YSRN

The square outer shape YSRN locknut features two point brass locking screws in a 90° position. Suitable for bearing seat support. Inner threads and end surfaces are simultaneously machined ensuring assembly accuracy.

More
  • Material Composition:S45C(C45E4)

  • Hardness:HRC26° ~28°

  • Thread Precision:ISO 4H

  • Manufacturing Method: High Precision Turning

  • Run Out:0.005mm

 
 
YSRN YSRN
Thread D h d1 n-m c1 S MAX Nm
YSRN- M5x0.5P 12.5 5 8 2-M3 2.7 11 0.9
YSRN-M6x0.75P 13.5 9 12
YSRN- M8x1.0P 16 6.5 11 4 14
YSRN-M10x1.0P 19 8 13 5.5 16
YSRN-M12x1.0P 22 16 2-M4 5.5 19 3.5
YSRN-M15x1.0P 25 19 4.75 22
YSRN-M17x1.0P 29 13 21 9 24
YSRN-M20x1.0P 35 11 27 7 30 8
YSRN-M25x1.5P 43 15 32 2-M6 10 35
YSRN-M30x1.5P 48 20 37 14 40
YSRN-M35x1.5P 60 21 47 50
YSRN-M40x1.5P 62 25 18