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China Hexagonal Nylon Lock Nuts - Galvanized, Anti-Looseness, Suppliers & Factory for Industrial Applications
| Thread size d |
M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | M20 | M24 | M30 | M36 | |
| P | Pitch | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 3 | 3.5 | 4 |
| da | Max | 3.45 | 4.6 | 5.75 | 6.75 | 8.75 | 10.8 | 13 | 15.1 | 17.3 | 21.6 | 25.9 | 32.4 | 38.9 |
| Min | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 30 | 36 | |
| dw | Min | 4.57 | 5.88 | 6.88 | 8.88 | 11.63 | 14.63 | 16.63 | 19.64 | 22.49 | 27.7 | 33.25 | 42.75 | 51.11 |
| e | Min | 6.01 | 7.66 | 8.79 | 11.05 | 14.38 | 17.77 | 20.03 | 23.36 | 26.75 | 32.95 | 39.55 | 50.85 | 60.79 |
| h | Max | 4.5 | 6 | 6.8 | 8 | 9.5 | 11.9 | 14.9 | 17 | 19.1 | 22.8 | 27.1 | 32.6 | 38.9 |
| Min | 4.02 | 5.52 | 6.22 | 7.42 | 8.92 | 11.2 | 14.2 | 15.9 | 17.8 | 20.7 | 25 | 30.1 | 36.4 | |
| m | Min | 2.15 | 2.9 | 4.4 | 4.9 | 6.44 | 8.04 | 10.37 | 12.1 | 14.1 | 16.9 | 20.2 | 24.3 | 29.4 |
| mw | Min | 1.72 | 2.32 | 3.52 | 3.92 | 5.15 | 6.43 | 8.3 | 9.68 | 11.28 | 13.52 | 16.16 | 19.44 | 23.52 |
| s | Max | 5.5 | 7 | 8 | 10 | 13 | 16 | 18 | 21 | 24 | 30 | 36 | 46 | 55 |
| Min | 5.32 | 6.78 | 7.78 | 9.78 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 29.16 | 35 | 45 | 53.8 | |
| 1,000-piece weight (steel) ≈ kg | 0.419 | 0.91 | 1.43 | 2.72 | 5.63 | 10.64 | 16.34 | 25.24 | 37.26 | 65.54 | 113.6 | 231.3 | 396.7 | |
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Hexagonal nylon lock nut is mainly used for the need to prevent the nut loose occasion. Its main role is through the built-in nylon washers to increase friction, to prevent the nut vibration and loose. These nuts are commonly used in mechanical equipment, automotive, aerospace and other industrial fields to ensure that the nut will not accidentally loose in the course of work.
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Frequently Asked Questions
1What is a galvanized hexagonal nylon lock nut?
A galvanized hexagonal nylon lock nut is a fastener combining a standard hexagonal nut body with a built-in nylon insert. The galvanized surface coating provides corrosion resistance, while the nylon ring grips the bolt threads to prevent loosening under vibration or dynamic loads.
2What thread sizes are available for hexagonal nylon lock nuts?
Hexagonal nylon lock nuts are available in thread sizes from M3 to M36, with pitches ranging from 0.5 mm (M3) up to 4 mm (M36). This wide size range covers most industrial and mechanical engineering applications.
3How does the nylon insert prevent the nut from loosening?
The nylon insert has an internal diameter slightly smaller than the bolt thread. When tightened, the nylon deforms elastically around the threads, creating strong additional friction. This friction resists rotation caused by vibration or dynamic forces, preventing accidental loosening during operation.
4Which industries commonly use hexagonal nylon lock nuts?
Hexagonal nylon lock nuts are widely used in mechanical equipment manufacturing, automotive assembly, aerospace engineering, electronics, and general construction. They are preferred in any application where preventing nut loosening under vibration or cyclic stress is critical for safety and reliability.
5Can hexagonal nylon lock nuts be reused multiple times?
Nylon lock nuts can be reused a limited number of times, but their locking effectiveness diminishes with each removal as the nylon insert gradually wears. For safety-critical applications, it is strongly recommended to install new nylon lock nuts each time to maintain reliable locking performance.
6How is the 1,000-piece weight useful when ordering?
The 1,000-piece weight reference helps buyers accurately estimate freight costs and plan bulk procurement quantities. For example, 1,000 pieces of M3 steel nylon lock nuts weigh approximately 0.419 kg, while 1,000 pieces of M36 weigh approximately 396.7 kg — critical data for logistics and inventory management.