SS Nylon Insert Lock Nut
SS Nylon Insert Lock Nut
Manufacturers:
18-8 stainless steel nylon insert lock nuts are hex nuts that have a nylon collar insert in one end of the nut. The nylon insert increases friction on the screw thread, which resists loosening. Dimensional specifications are governed by ASME B18.16.6. The nylon insert lock nut is an economic locking nut and ideal in applications where vibration or motion could loosen or undo the nut.
Products
Dimensional Specifications
| Per ASME B18.16.6-2017 | ||||||||||
| Nominal Diameter | UNC | UNF | A | B | C | D | ||||
| Width Across Flats | Width Across Corners |
Thickness | Hex Height | |||||||
| Basic | Max | Min | Min | Max | Min | Min | ||||
| #2 | 0.086 | 56 | 1/4 | 0.251 | 0.243 | 0.268 | 0.153 | 0.133 | 0.081 | |
| #3 | 0.099 | 48 | 1/4 | 0.251 | 0.243 | 0.268 | 0.153 | 0.133 | 0.081 | |
| #4 | 0.112 | 40 | 1/4 | 0.251 | 0.243 | 0.268 | 0.153 | 0.133 | 0.081 | |
| #5 | 0.125 | 40 | 1/4 | 0.251 | 0.243 | 0.268 | 0.153 | 0.133 | 0.081 | |
| #6 | 0.138 | 32 | 40 | 5/16 | 0.313 | 0.305 | 0.339 | 0.188 | 0.168 | 0.103 |
| #8 | 0.164 | 32 | 36 | 11/32 | 0.345 | 0.336 | 0.374 | 0.239 | 0.219 | 0.140 |
| #10 | 0.190 | 24 | 32 | 3/8 | 0.376 | 0.243 | 0.410 | 0.249 | 0.229 | 0.140 |
| #12 | 0.216 | 24 | 28 | 1/4 | 0.439 | 0.430 | 0.482 | 0.328 | 0.298 | 0.225 |
| 1/4 | 0.250 | 20 | 28 | 7/16 | 0.439 | 0.430 | 0.482 | 0.328 | 0.298 | 0.225 |
| 5/16 | 0.313 | 18 | 24 | 1/2 | 0.502 | 0.492 | 0.552 | 0.359 | 0.329 | 0.250 |
| 3/8 | 0.375 | 16 | 24 | 9/16 | 0.564 | 0.553 | 0.622 | 0.468 | 0.438 | 0.335 |
| 7/16 | 0.438 | 14 | 20 | 5/8 | 0.627 | 0.616 | 0.698 | 0.468 | 0.438 | 0.324 |
| 1/2 | 0.500 | 13 | 20 | 3/4 | 0.752 | 0.741 | 0.837 | 0.609 | 0.579 | 0.464 |
| 9/16 | 0.563 | 12 | 18 | 7/8 | 0.877 | 0.865 | 0.978 | 0.656 | 0.626 | 0.469 |
| 5/8 | 0.625 | 11 | 18 | 15/16 | 0.940 | 0.928 | 1.051 | 0.765 | 0.735 | 0.593 |
| 3/4 | 0.750 | 10 | 16 | 1 1/8 | 1.064 | 1.052 | 1.191 | 0.890 | 0.861 | 0.742 |
| 7/8 | 0.875 | 9 | 14 | 1 5/16 | 1.252 | 1.239 | 1.403 | 0.999 | 0.969 | 0.790 |
| 1 | 1.000 | 8 | 14 | 1 1/2 | 1.440 | 1.427 | 1.615 | 1.078 | 1.016 | 0.825 |
| 1 1/8 | 1.125 | 7 | 12 | 1 11/16 | 1.627 | 1.614 | 1.826 | 1.203 | 1.410 | 0.930 |
| 1 1/4 | 1.250 | 7 | 12 | 1 7/8 | 1.815 | 1.801 | 2.038 | 1.422 | 1.360 | 1.125 |
| 1 1/2 | 1.500 | 6 | 12 | 2 1/4 | 2.197 | 2.159 | 2.444 | 1.640 | 1.578 | 1.313 |
- All dimensions are in inches.
Governing Standards
| ASME B18.16.6 | Covers the complete general, dimensional, mechanical, and performance requirements (proof load, prevailing torque, and torque-tension) for carbon steel, inch series nylon insert locknuts of grades N2, N5, and N8 in styles NE (1/4 in. – 1-1/2 in.), NTE (1/4 in. – 1-1/2 in.), NU (1/4 in. – 3 in.), NTU (1/4 in. – 3 in.), NM (#2-#12), NTM (#2-#12), and hex flange (1/4 in. – 3/4 in.). This Standard also includes all-metal hex (#4-1-1/2 in.) and hex flange (1/4 in. – 3/4 in.) locking nuts of grades A, B, C, F, and G. These nut designs are designated as American National Standards. |
| ASME B1.1 UNC & UNF Class 2B | Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. |
18-8 Stainless Steel requires no material marking