Heavy Nylon Lock Nuts, Zinc Plated Steel, Grade A, 2-3/4"-4 UNC
Heavy Lock Nut with a Nylon Insert in Zinc Plated Steel
- Hexagonal shape Nylon Lock Nut
- Nylon material creates pressure against the fastener
- Forces the bottom threads of the fastener against the top threads of the bolt
- Heavy Nut with Nylon Insert
- UNC Coarse thread sizes
- Locks the nut into place so it will not vibrate loose
- Also referred to as Nylon Lock Nuts, Nyloc Nuts, Polymer-Insert Lock Nuts, or Elastic Stop Nuts
- Retain locking ability up to 250 °F (121 °C)
- Case Hardened CR+3 Zinc Plated Steel
- REACH and RoHS Compliant
| Nut Size | Width Across Flats | Thickness |
| 1/4-20 | Max 0.506-Min 0.489 | Max 0.390-Min 0.360 |
| 5/16-18 | Max 0.566-Min 0.551 | Max 0.453-Min 0.423 |
| 3/8-16 | Max 0.691-Min 0.675 | Max 0.562-Min 0.532 |
| 7/16-14 | Max 0.754-Min 0.736 | Max 0.609-Min 0.579 |
| 1/2-13 | Max 0.879-Min 0.861 | Max 0.718-Min 0.688 |
| 9/16-12 | Max 0.942-Min 0.922 | Max 0.812-Min 0.782 |
| 5/8-11 | Max 1.067-Min 1.045 | Max 0.874-Min 0.844 |
| 3/4-10 | Max 1.255-Min 1.231 | Max 1.015-Min 0.985 |
| 7/8-9 | Max 1.444-Min 1.417 | Max 1.140-Min 1.110 |
| 1-8 | Max 1.632-Min 1.602 | Max 1.312-Min 1.250 |
| 1-1/8-7 | Max 1.820-Min 1.788 | Max 1.469-Min 1.407 |
| 1-1/4-7 | Max 2.008-Min 1.973 | Max 1.672-Min 1.610 |
| 1-3/8-6 | Max 2.197-Min 2.159 | Max 1.828-Min 1.766 |
| 1-1/2-6 | Max 2.384-Min 2.344 | Max 1.953-Min 1.891 |
| 1-5/8-5.5 | Max 2.572-Min 2.530 | Max 2.172-Min 2.110 |
| 1-3/4-5 | Max 2.762-Min 2.715 | Max 2.376-Min 2.250 |
| 2-4.5 | Max 3.137-Min 3.086 | Max 2.469-Min 2.343 |
| 2-1/4-4.5 | Max 3.514-Min 3.457 | Max 2.876-Min 2.750 |
| 2-1/2-4 | Max 4.015-Min 3.875 | Max 3.204-Min 3.078 |
| 2-3/4-4 | Max 4.015-Min 3.875 | Max 3.204-Min 3.078 |
| 3-4 | Max 4.640-Min 4.500 | Max 3.704-Min 3.578 |
Product number:
1102-084-0192