براغي رأس كبس نقطة كوب M4 × 5 مم | سبائك الصلب (1000 / عبوة)

The cup point on these bites into the metal shaft really well, so my pulleys stay perfectly locked. The hex socket drive makes it easy to tighten them down even in cramped spots. Just what I needed for a few machine repairs.

The box showed up with all 1000 pieces accounted for, and the cup point tips bite into the shaft way better than the flat ones I’ve used before. For the price per unit, these alloy steel screws are a solid buy for any workbench drawer.

The cup point really locks into place on aluminum shafts without stripping—perfect for my small robotics brackets. These M4 set screws are exactly the right length for flush mounting, and the hex drive made installation in tight spots a breeze.