غسالات قفل مشقوقة 5/16 بوصة | فولاذ مؤكسد أسود (1000 / عبوة)

The black oxide finish on these washers has held up perfectly during assembly, no chipping or flaking at all. I'm using them on a vibrating machine mount and they've kept everything tight through weeks of use.

The black oxide finish on these washers is really uniform and seems durable, I've been able to use them in a few projects without any rust issues so far. They fit perfectly on my 5/16 bolts and the 1000-pack should last me quite a while.

These washers have a nice, consistent thickness that made assembly easy on a bench grinder stand I just built. At this price for a thousand, I won't run out mid-project for a long time.