براغي تثبيت برأس كوب محزز M4 × 12 مم | فولاذ سبائكي (500 / عبوة)

The hex socket drive made installing these into my workbench jig a breeze, and the knurled cup point tip holds the material firmly without slipping. The alloy steel feels solid and durable right out of the box, perfect for high-torque applications. I bought a full pack for future projects and have a

I needed a bunch of set screws for a jig I'm building, and these M4 x 12mm knurled cup points are exactly what I was after. The hex socket drive makes them easy to tighten in tight spots without stripping.

The knurled cup point really bites into the shaft without slipping, and the hex socket drive makes adjustments easy even in cramped spots. These M4x12mm set screws feel solid and should last a long time in my latest project fixture.