秘密研究所

ISO 2320 - Prevailing torque type steel nuts -- Mechanical and performance properties

Self-locking type steel nuts - Mechanical and functional requirements ISO 2320


Test clamping forces and torques for self-locking nut six edges class properties 04


Thread dP Test clamping force F80 and N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e The first release TFD, min. f The fifth release TFD,min. f
M3 1 528 1 433 1 242 0,43 0,12 0,08
M4 2 672 2 505 2 171 0,9 0,18 0,12
M5 4 320 4 050 3 510 1,6 0,29 0,2
M6 6 112 5 730 4 966 3 0,45 0,3
M7 8 800 8 250 7 150 4,5 0,65 0,45
M8 11 120 10 425 9 035 6 0,85 0,6
M8x1 11 920 11 175 9 685 6 0,85 0,6
M10 17 600 16 500 14 300 10,5 1,5 1
M10x1,25 18 640 17 475 15 145 10,5 1,5 1
M10x1 19 600 18 375 15 925 10,5 1,5 1
M12 25 600 24 000 20 800 15,5 2,3 1,6
M12x1,5 26 800 25 125 21 775 15,5 2,3 1,6
M12x1,25 28 000 26 250 22 750 15,5 2,3 1,6
M14 34 960 32 775 28 405 24 3,3 2,3
M14x1,5 38 000 35 625 30 875 24 3,3 2,3
M16 47 760 44 775 38 805 32 4,5 3
M16x1,5 50 800 47 625 41 275 32 4,5 3
M18 58 400 54 750 47 450 42 6 4,2
M18x1,5 65 360 61 275 53 105 42 6 4,2
M20 74 480 69 825 60 515 54 7,5 5,3
M20x1,5 82 720 77 550 67 210 54 7,5 5,3
M22 92 080 86 325 74 815 68 9,5 6,5
M22x1,5 101 200 94 875 82 225 68 9,5 6,5
M24 107 280 100 575 87 165 80 11,5 8
M24x2 116 720 109 425 94 835 80 11,5 8
M27 139 520 130 800 113 360 94 13,5 10
M27x2 150 800 141 375 122 525 94 13,5 10
M30 170 560 159 900 138 580 108 16 12
M30x2 188 800 177 000 153 400 108 16 12
M33 210 960 197 775 171 405 122 18 14
M33x2 231 360 216 900 187 980 122 18 14
M36 248 400 232 875 201 825 136 21 16
M36x3 262 960 246 525 213 655 136 21 16
M39 296 720 278 175 241 085 150 23 18
M39x3 313 120 293 550 254 410 150 23 18

NOTE Calculation results of the test self-locking torque statistical control methods pnooesu (SPC) has no statistical significance


a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b see Annex B.

c The upper limit of the clamping force is equal to 75% of the test load, see Annex B.

d The lower limit of clamping force is equal to 65% of the test load, see Annex B.

e Torque for the first installation of a self-metal self-locking hex nuts. Torque for the self-locking hexagon nuts with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut class properties05


Thread dP Test clamping force F80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N first bolting Tfv,max. e first release TFd,min. f The fifth releaseTFd,min. f
M3 2 000 1 875 1 625 0,6 0,15 0,1
M4 3 520 3 300 2 860 1,2 0,22 0,15
M5 5 680 5 325 4 615 2,1 0,35 0,24
M6 8 000 7 500 6 500 4 0,55 0,4
M7 11 600 10 875 9 425 6 0,85 0,6
M8 14 640 13 725 11 895 8 1,15 0,8
M8x1 15 680 14 700 12 740 8 1,15 0,8
M10 23 200 21 750 18 850 14 2 1,4
M10x1,25 24 480 22 950 19 890 14 2 1,4
M10x1 25 760 24 150 20 930 14 2 1,4
M12 33 760 31 650 27 430 21 3,1 2,1
M12x1,5 35 200 33 000 28 600 21 3,1 2,1
M12x1,25 36 800 34 500 29 900 21 3,1 2,1
M14 46 000 43 125 37 375 31 4,4 3
M14x1,5 50 000 46 875 40 625 31 4,4 3
M16 62 800 58 875 51 025 42 6 4.2
M16x1,5 66 800 62 625 54 275 42 6 4,2
M18 76 800 72 000 62 400 56 8 5,5
M18x1,5 86 000 80 625 69 875 56 8 5,5
M20 98 000 91 875 79 625 72 10,5 7
M20x1,5 108 800 102 000 88 400 72 10,5 7
M22 121 200 113 625 98 475 90 13 9
M22x1,5 133 200 124 875 108 225 90 13 9
M24 141 200 132 375 114 725 106 15 10,5
M24x2 153 600 144 000 124 800 106 15 10,5
M27 183 600 172 125 149 175 123 17 12
M27x2 198 400 186 000 161 200 123 17 12
M30 224 400 210 375 182 325 140 19 14
M30x2 248 400 232 875 201 825 140 19 14
M33 277 600 260 250 225 550 160 21,5 15,5
M33x2 304 400 285 375 247 325 160 21,5 15,5
M36 326 800 306 375 265 525 180 24 17,5
M36x3 346 000 324 375 281 125 180 24 17,5
M39 390 400 366 000 317 200 200 26,5 19,5
M39x3 412 000 386 250 334 750 200 26,5

NOTE Calculation results of the test self-locking torque statistical control methods pnooesu (SPC) has no statistical significance


a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b See Annex B.

c Value of upper limit clamping force is equal to 75% of the test load, see Appendix B.

d The lower limit of clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only all-metal self-locking hex nuts. Torque for the self-locking hexagon nuts with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut class properties 5


Thread dP Test clamping forceF80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e First releaseTFd,min. f The fifth releaseTFd,min. f
M3 1 528 1 433 1 242 0,43 0,12 0,08
M4 2 672 2 505 2 171 0,9 0.18 0,12
M5 4 320 4 050 3 510 1,6 0.29 0,2
M6 6 112 5 730 4 966 3 0,45 0,3
M7 8 800 8 250 7 150 4,5 0,65 0,45
M8 11 120 10 425 9 035 6 0,85 0,6
M8x1 11 920 11 175 9 685 6 0,85 0,6
M10 17 600 16 500 14 300 10,5 1,5 1
M10x1,25 18 640 17 475 15 145 10,5 1,5 1
M10x1 19 600 18 375 15 925 10,5 1,5 1
M12 25 600 24 000 20 800 15,5 2,3 1,6
M12x1,5 26 800 25 125 21 775 15,5 2,3 1,6
M12x1,25 28 000 26 250 22 750 15,5 2,3 1,6
M14 34 960 32 775 28 405 24 3,3 2,3
M14x1,5 38 000 35 625 30 875 24 3,3 2,3
M16 47 760 44 775 38 805 32 4,5 3
M16x1,5 50 800 47 625 41 275 32 4,5 3
M18 58 400 54 750 47 450 42 6 4,2
M18x1,5 65 680 61 575 53 365 42 6 4,2
M20 74 480 69 825 60 515 54 7,5 5,3
M20x1,5 82 400 77 250 66 950 54 7,5 5,3
M22 92 000 86 250 74 750 68 9,5 6,5
M22x1,5 100 800 94 500 81 900 68 9,5 6,5
M24 107 200 100 500 87 100 80 11,5 8
M24x2 116 800 109 500 94 900 80 11,5 8
M27 113 600 106 500 92 300 94 13,5 10
M27x2 123 200 115 500 100 100 94 13,5 10
M30 139 200 130 500 113 100 108 16 12
M30x2 153 600 144 000 124 800 108 16 12
M33 172 000 161 250 139 750 122 18 14
M33x2 188 800 177 000 153 400 122 18 14
M36 202 400 189 750 164 450 136 21 16
M36x3 214 400 201 000 174 200 136 21 16
M39 242 400 227 250 196 950 150 23 18
M39x3 255 200 239 250 207 350 150 23

PNote Calculation results of the test self-locking torque statistical control methods pnooesu (SPC) has no statistical significance


a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b Viz p酶铆loha B.

c Value of upper limit clamping force is equal to 75% of the test load, see Annex B.

d The lower limit of clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only all-metal self-locking hex nuts. Torque for the self-locking hexagon nuts with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that additional testing requirements complete pn joint use of serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut class properties 6


Thread dP Test clamping forceF80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e First releaseTFd,min. f The fifth releaseTFd,min. f
M3 1 768 1 658 1 437 0,43 0,12 0,08
M4 3 088 2 895 2 509 0,9 0.18 0,12
M5 5 000 4 688 4 063 1,6 0,29 0,2
M6 7 072 6 630 5 746 3 0,45 0,3
M7 10 160 9 525 8 255 4,5 0,65 0,45
M8 12 880 12 075 10 465 6 0,85 0,6
M8x1 13 760 12 900 11 180 6 0,85 0,6
M10 20 400 19 125 16 575 10,5 1,5 1
M10x1,25 21 520 20 175 17 485 10,5 1,5 1
M10x1 22 720 21 300 18 460 10,5 1,5 1
M12 29 680 27 825 24 115 15,5 2,3 1,6
M12x1,5 31 040 29 100 25 220 15,5 2,3 1,6
M12x1,25 32 400 30 375 26 325 15,5 2,3 1,6
M14 40 480 37 950 32 890 24 3,3 2,3
M14x1,5 44 000 41 250 35 750 24 3,3 2,3
M16 55 280 51 825 44 915 32 4,5 3
M16x1,5 58 800 55 125 47 775 32 4,5 3
M18 67 600 63 375 54 925 42 6 4,2
M18x1,5 76 000 71 250 61 750 42 6 4,2
M20 86 400 81 000 70 200 54 7,5 5,3
M20x1,5 96 000 90 000 78 000 54 7,5 5,3
M22 106 400 99 750 86 450 68 9,5 6,5
M22x1,5 116 800 109 500 94 900 68 9,5 6,5
M24 124 000 116 250 100 750 80 11,5 8
M24x2 135 200 126 750 109 850 80 11,5 8
M27 161 600 151 500 131 300 94 13,5 10
M27x2 174 400 163 500 141 700 94 13,5 10
M30 197 600 185 250 160 550 108 16 12
M30x2 218 400 204 750 177 450 108 16 12
M33 244 000 228 750 198 250 122 18 14
M33x2 268 000 251 250 217 750 122 18 14
M36 287 200 269 250 233 350 136 21 16
M36x3 304 800 285 750 247 650 136 21 16
M39 343 200 321 750 278 850 150 23 18
M39x3 362 400 339 750 294 450 150 23

a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b See appendix B.

c Value of upper limit clamping force is equal to 75% of the test load, see Appendix B.

d to calculate the lower clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only samojistn媒ch all-metal hexagon nuts. Torque for the self-locking hex matrix with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut characteristics of Class 8


Thread dP Test clamping forceF80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e First releaseTFd,min. f The fifth releaseTFd,min. f
M3 2 336 2 190 1 898 0,43 0,12 0,08
M4 4 080 3 825 3 315 0,9 0,18 0,12
M5 6 584 6 173 5 350 1,6 0,29 0,2
M6 9 280 8 700 7 540 3 0,45 0,3
M7 13 440 12 600 10 920 4,5 0,65 0,45
M8 16 960 15 900 13 780 6 0,85 0,6
M8x1 18 160 17 025 14 755 6 0,85 0,6
M10 26 960 25 275 21 905 10,5 1,5 1
M10x1,25 28 400 26 625 23 075 10,5 1,5 1
M10x1 29 920 28 050 24 310 10,5 1,5 1
M12 39 120 36 675 31 785 15,5 2,3 1,6
M12x1,5 40 880 38 325 33 215 15,5 2,3 1,6
M12x1,25 42 720 40 050 34 710 15,5 2,3 1,6
M14 53 360 50 025 43 355 24 3,3 2,3
M14x1,5 58 000 54 375 47 125 24 3,3 2,3
M16 72 800 68 250 59 150 32 4,5 3
M16x1,5 77 520 72 675 62 985 32 4,5 3
M18 92 000 86 250 74 750 42 6 4,2
M18x1,5 104 000 97 500 84 500 42 6 4,2
M20 117 600 110 250 95 550 54 7,5 5,3
M20x1,5 130 400 122 250 105 950 54 7,5 5,3
M22 145 600 136 500 118 300 68 9,5 6,5
M22x1,5 160 000 150 000 130 000 68 9,5 6,5
M24 169 600 159 000 137 800 80 11,5 8
M24x2 184 000 172 500 149 500 80 11,5 8
M27 220 000 206 250 178 750 94 13,5 10
M27x2 238 400 223 500 193 700 94 13,5 10
M30 269 600 252 750 219 050 108 16 12
M30x2 298 400 279 750 242 450 108 16 12
M33 332 800 312 000 270 400 122 18 14
M33x2 365 600 342 750 297 050 122 18 14
M36 392 000 367 500 318 500 136 21 16
M36x3 415 200 389 250 337 350 136 21 16
M39 468 800 439 500 380 900 150 23 18
M39x3 494 400 463 500 401 700 150 23

a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b Viz p酶铆loha B.

c Value of upper limit clamping force is equal to 75% of the test load, see Appendix B.

d to calculate the lower clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only samojistn媒ch all-metal hexagon nuts. Torque for the self-locking hex matrix with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut characteristics of Class 9


Thread dP Test clamping forceF80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e First releaseTFd,min. f The fifth releaseTFd,min. f
M3 2 616 2 453 2 126 0,43 0,12 0,08
M4 4 568 4 283 3712 0,9 0,18 0,12
M5 7 384 6 923 6 000 1,6 0,29 0,2
M6 10 480 9 825 8 515 3 0,45 0,3
M7 15 040 14 100 12 220 4,5 0,65 0,45
M8 19 040 17 850 15 470 6 0,85 0,6
M8x1 20 400 19 125 16 575 6 0,85 0,6
M10 30 160 28 275 24 505 10,5 1,5 1
M10x1,25 31 840 29 850 25 870 10,5 1,5 1
M10x1 33 520 31 425 27 235 10,5 1,5 1
M12 43 840 41 100 35 620 15,5 2,3 1,6
M12x1,5 45 840 42 975 37 245 15,5 2,3 1,6
M12x1,25 47 920 44 925 38 935 15,5 2,3 1,6
M14 59 840 56 100 48 620 24 3,3 2,3
M14x1,5 64 960 60 900 52 780 24 3,3 2,3
M16 81 600 76 500 66 300 32 4,5 3
M16x1,5 87 200 81 750 70 850 32 4,5

a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b Viz p酶铆loha B.

c Value of upper limit clamping force is equal to 75% of the test load, see Appendix B.

d to calculate the lower clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only samojistn媒ch all-metal hexagon nuts. Torque for the self-locking hex matrix with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut characteristics of Class 10


Thread dP Test clamping forceF80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e First releaseTFd,min. f The fifth releaseTFd,min. f
M3 3 344 3 135 2 717 0,6 0,15 0,1
M4 5 832 5 468 4 739 1,2 0,22 0,15
M5 9 440 8 850 7 670 2,1 0,35 0,24
M6 13 360 12 525 10 855 4 0,55 0,4
M7 19 200 18 000 15 600 6 0,85 0,6
M8 24 320 22 800 19 760 8 1,15 0,8
M8x1 26 000 24 375 21 125 8 1,15 0,8
M10 38 480 36 075 31 265 14 2 1,4
M10x1,25 40 640 38 100 33 020 14 2 1,4
M10x1 42 800 40 125 34 775 14 2 1,4
M12 56 000 52 500 45 500 21 3,1 2,1
M12x1,5 58 480 54 825 47 515 21 3,1 2,1
M12x1,25 61 120 57 300 49 660 21 3,1 2,1
M14 76 400 71 625 62 075 31 4,4 3
M14x1,5 83 200 78 000 67 600 31 4,4 3
M16 104 000 97 500 84 500 42 6 4,2
M16x1,5 111 200 104 250 90 350 42 6 4,2
M18 127 200 119 250 103 350 56 8 5,5
M18x1,5 143 200 134 250 116 350 56 8 5,5
M20 162 400 152 250 131 950 72 10,5 7
M20x1,5 180 800 169 500 146 900 72 10,5 7
M22 201 600 189 000 163 800 90 13 9
M22x1,5 220 800 207 000 179 400 90 13 9
M24 234 400 219 750 190 450 106 15 10,5
M24x2 255 200 239 250 207 350 106 15 10,5
M27 304 800 285 750 247 650 123 17 12
M27x2 329 600 309 000 267 800 123 17 12
M30 372 800 349 500 302 900 140 19 14
M30x2 412 000 386 250 334 750 140 19 14
M33 460 800 432 000 374 400 160 21,5 15,5
M33x2 505 600 474 000 410 800 160 21,5 15,5
M36 542 400 508 500 440 700 180 24 17,5
M36x3 574 400 538 500 466 700 180 24 17,5
M39 648 000 607 500 526 500 200 26,5 19,5
M39x3 684 000 641 250 555 750 200 26,5

aClamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b Viz p酶铆loha B.

c Value of upper limit clamping force is equal to 75% of the test load, see Appendix B.

d to calculate the lower clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only samojistn媒ch all-metal hexagon nuts. Torque for the self-locking hex matrix with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.



Test clamping forces and torques for self-locking hex nut characteristics of Class 12


Thread dP Test clamping forceF80 a N Test clamping force for assessing the overall friction factor torque N.m
ceiling
F75c N
Lower limit F65d N First bolting Tfv,max. e First releaseTFd,min. f The fifth releaseTFd,min. f
M3 3 904 3 660 3 172 0,6 0.15 0,1
M4 6 816 6 390 5 538 1,2 0,22 0,15
M5 11 040 10 350 8 970 2,1 0,35 0,24
M6 15 600 14 625 12 675 4 0,55 0,4
M7 22 400 21 000 18 200 6 0,85 0,6
M8 28 400 26 625 23 075 8 1,15 0,8
M8x1 30 400 28 500 24 700 8 1,15 0,8
M10 45 040 42 225 36 595 14 2 1,4
M10x1,25 47 520 44 550 38 610 14 2 1,4
M10x1 50 160 47 025 40 755 14 2 1,5
M12 65 440 61 350 53 170 21 3,1 2,1
M12x1,5 68 400 64 125 55 575 21 3,1 2,1
M12x1,25 71 440 66 975 58 045 21 3,1 2,1
M14 89 600 84 000 72 800 31 4,4 3
M14x1,5 96 800 90 750 78 650 31 4,4 3
M16 121 600 114 000 98 800 42 6 4,2
M16x1,5 129 600 121 500 105 300 42 6 4,2
M18 148 800 139 500 120 900 56 8 5,5
M18x1,5 168 000 157 500 136 500 56 8 5,5
M20 190 400 178 500 154 700 72 10,5 7
M20x1,5 211 200 198 000 171 600 72 10,5 7
M22 235 200 220 500 191 100 90 13 9
M22x1,5 258 400 242 250 209 950 90 13 9
M24 273 600 256 500 222 300 106 15 10,5
M24x2 297 600 279 000 241 800 106 15 10,5
M27 356 000 333 750 289 250 123 17 12
M27x2 384 800 360 750 312 650 123 17 12
M30 435 200 408 000 353 600 140 19 14
M30x2 481 600 451 500 391 300 140 19 14
M33 538 400 504 750 374 400 160 21,5 15,5
M33x2 590 400 553 500 479 700 160 21,5 15,5
M36 633 600 594 000 514 800 180 24 17,5
M36x3 671 200 629 250 545 350 180 24 17,5
M39 757 600 710 250 615 550 200 26,5 19,5
M39x3 799 200 749 250 649 350 200 26,5

a Clamping force nuts for strength class 04 is equal to 80% of the test load for nuts strength class 04 nominal diameter of 3 mm

b Viz p酶铆loha B.

c Value of upper limit clamping force is equal to 75% of the test load, see Appendix B.

d to calculate the lower clamping force is equal to 65% of the test load, see Appendix B.

e Torque for the first installation only samojistn媒ch all-metal hexagon nuts. Torque for the self-locking hex matrix with non-metallic liner must be a maximum of 50% of the value.

f The values in this table are required to perform tests in accordance with the test conditions in the laboratory. Using this type of fasteners is dependent upon the delivery and execution may vary in normal use. It is recommended that further testing requirements pn complete connections using serial parts were placed on functionality, if functionality is required.