براغي ماكينة M6-1 × 30 مم | رأس أسطواني مشقوق | فولاذ مطلي بالزنك (400/عبوة)

The threads are cleanly cut on every screw I've checked, so they seat properly without any wobble in my jig. The cheese head gives a good grip for the slotted driver, and having 400 in one package means I won't run out mid-project.

The slotted cheese head drove in smooth and flush with my jig fixture, and the zinc finish on these M6-1 30mm screws looks clean. Pack of 400 means I've got plenty for a few small projects, even if a few get lost.

The zinc coating looks even and feels durable, which should hold up well in my garage shelving project. My only minor gripe is that the slotted drive can be a bit finicky with a screwdriver compared to Phillips heads, but once seated they tighten down nicely.