غسالات قفل ذات أسنان خارجية 1/4 بوصة | ستانلس ستيل 410 (100 / عبوة)

Installed these on a couple of small engine mounts and they’ve held tight through several hours of runtime. The 410 stainless feels sturdy and the internal-external teeth grip well without marring the surface.

I needed some serious vibration resistance for a project, and these #1 lock washers fit the bill perfectly. They held tight even against a constant rattle from my workshop drill press.

The 410 stainless steel gives these a solid, rigid feel that I didn't expect at this price point. I've used them on a small vibration-prone assembly and the teeth bite in firmly, no loosening after a week of use.