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The DU-BRO Metric Nylon Insert Lock Nuts are strong, dependable fasteners designed to keep your RC hardware securely in place. Each nut features a nylon insert that grips the bolt threads as you tighten it. This prevents the nut from loosening due to vibration--a major benefit for RC airplanes, cars, boats, drones, and any model that experiences constant movement.
These nuts are made from aircraft-quality steel and finished with a zinc plating that protects them from rust and wear. This makes them a great choice for glow, gas, and electric models, as well as outdoor projects where moisture or fuel exposure can occur.
Metric lock nuts are commonly needed for:
Motor and engine mounting
Landing gear installation
Servo trays and control systems
Control horns, linkages, and pushrods
RC car suspension and chassis parts
Robotics, 3D-printed projects, and general workshop use
Because the nylon insert keeps the nut from backing out, these lock nuts give you a secure, long-lasting hold. They tighten smoothly, stay in place, and handle vibration extremely well.
Each package includes 4 nylon insert lock nuts, making them perfect for repairs, upgrades, or stocking your toolbox. If you want reliable fastening that won't shake loose, the DU-BRO Metric Nylon Insert Lock Nuts are a must-have.
SKU Number: DUB2101
Metric Nylock Nuts
A nylock nut carries a nylon insert that grips the thread and resists loosening under vibration, which makes it a natural choice for airframes and engine mounts that shake in use. This category gathers metric locking nuts in the sizes model builders reach for most.
Sizes and Types
Plated alloy nylock nuts run from 2mm and 2.5mm in four-packs up through 3mm, 4mm, and 5mm in six-packs, so you can buy the count that suits a given job. For builders who prefer a name brand, Du-Bro nylon insert lock nuts are included as well.
Because the nylon collar does the locking, these nuts can be removed and reused within reason, unlike thread-locking compounds. Matching nut size to your bolt or all-thread keeps assemblies secure without over-tightening. Keeping a small assortment of these sizes on the bench covers most of the fasteners a typical build calls for.
Select the size and pack quantity you need from the listings below.
 "2mm Nylock Plated Alloy Nuts 4 Pack")
 "2.5mm Nylock Plated Alloy Nuts 4 Pack")
 "Du-Bro 2-56 Nylon Insert Lock Nuts Standard 4PK")
 "3mm Nylock Plated Alloy Nuts 6 Pack")
 "4mm Nylock Plated Alloy Nuts 6 Pack")
 "5mm Nylock Plated Alloy Nuts 6 Pack")
 "6mm Nylock Plated Alloy Nuts 6 Pack")
 "Du-Bro 6-32 NYLON INSERT LOCK NUTS (STANDARD)")
 "DU-BRO Metric Nylon Insert Lock Nuts - Zinc Plated RC Hardware")