براغي رأس سداسية مسطحة M4 × 4 مم | فولاذ سبائكي (1000 / عبوة)

Grabbed these for a small robotics project and the flat point really holds its position without slipping under vibration. All 1000 were consistently threaded and the alloy steel feels plenty strong for my use.

I was a little worried about stripping the hex socket on such a small screw, but the alloy steel held up fine across all 1000 pieces. The flat point seated cleanly in the set position every time, even when I had to adjust them twice.

They did the job for a small robotics bracket I was securing, but a few screws had slightly uneven threads. The flat point seated perfectly in the dimples, which I appreciate for precise positioning. Good value for the quantity, though I wish the packaging was sturdier.