براغي ذات رأس أسطواني #10-24 × 1-5/8 بوصة | محرك سداسي برأس مسطح | سبيكة فولاذية معالجة حرارياً وأكسيد أسود (200 / عبوة)

The black oxide finish makes these screws slide into counterbores without any binding, and the hex socket drives cleanly even when I'm using a ball-end Allen key at an angle. Counted all 200 and they were spot on, no bent threads or damaged sockets in the batch. These are going straight into my fixt

I needed some properly-sized flat head screws for a jig I was building, and these #10-24 x 1-5/8" ones fit perfectly with their hex socket drive. The alloy steel feels solid, and the black oxide finish seems durable enough for repeated use.

The black oxide finish gives these a nice grip without being slick, and the flat head sits flush in my jig without snagging. All 200 arrived threaded cleanly, no burrs, and they’ve held up tight through a week of heavy use.