غسالات قفل خارجية بأسنان مقاس 1/4 بوصة | فولاذ مطلي بالزنك (5000 / عبوة)

Had a loose bolt issue on my trailer gate that kept coming back after every trip; these washers finally stopped it dead. The zinc coating looks clean and should last well even with some road moisture. Exactly the bite I needed for a secure hold under constant vibration.

Installed a set of these on a small engine mount and the vibration hasn't budged them at all. The 5000-count bag is perfect for keeping spares on hand for future projects.

The zinc coating feels smooth and consistent across all the washers I've checked so far, which gives me confidence in their corrosion resistance. I've been using them on a small vibrating assembly for a few weeks, and not a single fastener has loosened up.