Unified Nylon Insert Nut Size Comparison Charts

American nylon insert nuts also called nyloc or nylon insert self locking nuts use a Nylon insert to jam the threads of the male fastener, the six types are shown below.

SERIES:   NE    NTM    NM    NU    NTE    NTU

NYLON INSERT NUT

UNC UNF AMERICAN NYLON INSERT NUTS

 

Three tables below click to go directly to 

NUMBER SERIES       1/4" to 1"          ABOVE 1" 

 

 

 

Small sizes number series  Top of page 

TYPEdNo 1No 2No 3No 4No 5No 6No 8No 10No 12
typed0.0730.0860.0990.1120.1250.1380.1640.1900.216
NEs nom a/f 0.2470.2470.2470.2470.3090.3410.3720.435
NEs max 0.2510.2510.2510.2510.3130.3450.3760.439
NEs min 0.2430.2430.2430.2430.3050.3360.3670.430
NEh nom height 0.1430.1430.1430.1430.1780.2290.2390.313
NEh max 0.1530.1530.1530.1530.1880.2390.2490.328
NEh min 0.1330.1330.1330.1330.1680.2190.2290.298
NEm 0.0810.0810.0810.0810.1030.1400.1400.225
NEe 0.2680.2680.2680.2680.3390.3740.4100.482
NTMs nom a/f0.2460.2460.2460.2460.2460.3080.3390.3690.431
NTMs max0.2510.2510.2510.2510.2510.3130.3450.3760.439
NTMs min0.2410.2410.2410.2410.2410.3020.3320.3620.423
NTMe0.2680.2680.2680.2680.2680.3390.3740.4100.482
NTMh nom ht0.1090.1090.1090.1090.1090.1250.1720.1720.203
NTMh max0.1240.1240.1240.1240.1240.1400.1870.1870.218
NTMh min0.0940.0940.0940.0940.0940.1100.1570.1570.188
NTMm0.0750.0750.0750.0750.0750.0900.1100.1100.125
NMs nom a/f0.2470.2470.2470.2470.2470.3090.3410.3720.435
NMs max0.2510.2510.2510.2510.2510.3130.3450.3760.439
NMs min0.2430.2430.2430.2430.2430.3050.3360.3670.430
NMh nom ht0.1430.1430.1430.1430.1430.1780.2290.2390.313
NMh max0.1530.1530.1530.1530.1530.1880.2390.2490.328
NMh min0.1330.1330.1330.1330.1330.1680.2190.2290.298
NMm0.0810.0810.0810.0810.0810.1030.1400.1400.225
NMe0.2680.2680.2680.2680.2680.3390.3740.4100.482

 

 

 

Midrange 1/4" to 1"  Top of page 

TYPEd1/4"5/16"3/8"7/16"1/2"9/16"5/8"3/4"7/8"1"
typed0.2500.3130.3750.4380.5000.5630.6250.7500.8751.000
NEs nom a/f        0.4340.4960.5580.6220.7440.8690.9311.0581.246 1.434
NEs max0.4390.5020.5640.6270.7520.8770.9401.0641.252

 1.440

NEs min0.4280.4890.5510.6160.7360.8610.9221.0521.239 1.427
NEh nom ht0.3130.3440.4530.4530.5940.6410.7500.8750.984 1.047
NEh max0.3280.3590.4680.4680.6090.6560.7650.8900.999 1.078
NEh min0.2980.3290.4380.4380.5790.6260.7350.8600.969 1.016
NEm0.2250.2500.3350.3240.4640.4690.5930.7420.790 0.825
NEe0.4820.5520.6220.6980.8370.9781.0511.1911.403 1.615
NUs nom a/f0.4970.5590.6850.7470.8710.9341.0581.2461.434 1.621
NUs max0.5020.5640.6900.7520.8770.9401.0641.2521.440 1.627
NUs min0.4920.5530.6790.7410.8650.9281.0521.2391.427 1.614
NUh nom ht0.3750.4380.5470.5940.7030.7970.8591.0001.125 1.281
NUh max0.3900.4530.5620.6090.7180.8120.8741.0151.140 1.312
NUm0.2900.3350.3920.4640.5440.6550.6770.7900.883 1.000
NUe0.5520.6220.7660.8370.9781.0411.1911.4031.615 1.807
NTEs nom a/f0.4970.5590.6850.7470.8710.9341.0581.2461.434

 1.621

NTEs max0.4390.5020.5640.6270.7520.8770.9401.0641.252 1.440
NTEs min0.4300.4920.5530.6150.7410.8650.9281.0521.239 1.427
NTEh nom ht0.2030.2500.2660.3130.3130.3590.3910.4060.469 0.547
NTEh max0.2180.2650.2810.3280.3280.3740.4060.4210.484 0.578
NTEh min0.1880.2350.2510.2980.2980.3440.3760.3910.454 0.516
NTEe0.4820.5520.6220.6980.8370.9781.0511.1911.403 1.615
NTEm0.1250.1580.1590.2250.1900.2250.2650.2880.340 0.405
NTUs nom a/f0.4970.5590.6850.7470.8710.9341.0581.2461.4341.621
NTUs max0.5020.5640.6900.7520.8770.9401.0641.2521.4401.627 
NTUs min0.4920.5530.6790.7410.8650.9281.0521.2391.4271.614 
NTUh nom ht0.2810.3130.4060.4380.5310.5630.6090.7030.7810.891 
NTUh max0.2960.3280.4210.4530.5460.5780.6240.7180.7960.922 
NTUh min0.2660.2980.3910.4230.5160.5480.5940.6880.7660.860 
NTUm0.1940.2120.2510.3160.3600.4210.4280.4880.5350.600 
NTUe0.5520.6220.7660.8370.9781.0411.1911.4031.6151.807 

  

 

 

Large over 1"   Top of page 

TYPEd1.1/8"1.1/4"1.3/8"1.1/2"1.3/4"2"2.1/4"2.1/2"2.3/4"3"
typed1.1251.2501.3251.5001.7502.0002.2502.5002.7503.000
NEs nom a/f    1.6211.8021.9912.178      
NEs max1.6271.8152.0082.197      
NEs min1.6141.7881.9732.159      
NEh nom ht1.1751.3911.5781.608      
NEh max1.2081.4221.6091.640      
NEh min1.1411.3601.5471.576      
NEm0.9301.1251.2821.313      
NEe1.8262.0382.0382.444      
NUs nom a/f1.8081.9912.1782.3642.7393.1123.5004.0004.0004.625
NUs max1.8142.0082.1972.3842.7623.1373.7804.3204.3204.995
NUs min1.8011.9732.1592.3442.7153.0863.4693.9643.9644.583
NUh nom ht1.4381.6411.7971.9222.3132.3592.4062.8133.1413.641
NUh max1.4691.6721.8282.0232.3442.4372.8443.1723.1563.704
NUm1.0961.2501.3761.4131.8301.7502.0632.4752.3502.750
NUe2.0152.2192.4282.6363.0533.4693.9034.4604.4605.157
NTEs nom a/f1.8081.9912.1782.364      
NTEs max1.6271.8152.0082.197      
NTEs min1.6141.8011.9732.159      
NTEh nom ht0.6410.7340.7900.797      
NTEh max0.6720.7650.8210.828      
NTEh min0.6100.7030.7590.766      
NTEe1.8262.0382.2322.444      
NTEm0.5000.5230.4930.565      
NTUs nom a/f1.8081.9912.1782.3642.7393.1123.5004.0004.0004.625
NTUs max1.8142.0082.1972.3842.7623.1373.7804.3204.3204.995
NTUs min1.8011.9732.1592.3442.7153.0863.4693.9643.9644.583
NTUh nom ht0.9691.1091.1881.3131.4691.6721.9382.1872.1872.725
NTUh max1.0001.1401.2191.3441.5321.7351.8822.1232.1232.646
NTUh min0.9381.0781.1571.2821.4061.6091.8272.0612.0612.569
NTUm0.6270.7200.7670.8770.9861.0161.1791.5231.5232.075
NTUe2.0152.2192.4282.6363.0533.4693.9034.4604.4605.157

 

 

American nylon insert nuts also called nyloc or nylon insert self locking nuts use a Nylon insert to jam the threads of the male fastener

NYLON INSERT SELF LOCKING NUT

 

 

 

 

fasteners include nyloc nuts correctly called nylon insert nuts, these are supplied by specialist fastener supplyers servicing fastener users and nylon insert nut manufacturers. 

 

 

                   fastener data from fastenerdata