HOLO-KROME 73008 #0-80 X 3/8" 內六角螺絲 | 六角驅動 | 合金鋼 熱處理黑氧化 (100 / 包)

The box arrived perfectly sealed and the threads are clean, no burrs or debris. They seat nicely in my jig without any wobble, and the black oxide finish looks properly uniform across all 100 pieces.

The black oxide finish on these #0-80 screws gives them a nice, professional look and seems to resist rust well. I used a few for a small jig and the hex socket drive made installation a breeze with the tiny size. They held firm under light load, exactly what I needed for precision work.

The socket drive on these #0-80 screws fits my hex keys perfectly, and the black oxide finish on the alloy steel looks great for my jig setup. They threaded smoothly into my precision assembly without any binding issues.