M4 M5 M6 M8 Titanium Nylon Insert Lock Nuts Grade 5 Aerospace 6AL-4V

If you need lock nuts that are light but crazy strong, these titanium ones are it.

They're metric sizes—M4, M5, M6, and M8—with a nylon insert so they won't back out from vibration.

Made from Grade 5 titanium alloy (6AL-4V), the same stuff used in aerospace.

External hex drive, so you just use a standard wrench.

They're unbranded and made in China, but the material is legit.

New in package, ready for your project where every gram counts.