حلقات قفل مسننة خارجية M6 | فولاذ مطلي بالزنك (1000 / عبوة)

For my garage workbench project with a lot of vibration, the zinc plating on these M6 washers held up perfectly without any rust after a week. They snugged down tight under the nuts and haven't loosened at all since.

Fastened some shaky shelving brackets in my workshop and these washers kept the bolts tight even with the motor running nearby. The zinc coating looks clean and resists rust so far, glad I got a full pack for future projects.

Used a handful of these on my drill press table and they held tight even under heavy spindle vibration. The zinc coating looks consistent and they fit perfectly on standard M6 bolts. Exactly what I needed for a few small clamping fixtures.