#10-24 x 1-3/4" 內六角螺絲 | 六角驅動 | 尼龍防鬆膠 | 部分螺紋 | 合金鋼 熱處理黑色氧化 (100個/包)

Used a handful of these to secure a jig on my drill press, and the alloy steel threads cut clean without binding. The black oxide finish wipes off oil residue easily, and the nylon patch held tight under vibration.

The nylon patch is a nice touch—these screws stayed put on a fixture I built without needing threadlocker. The black oxide finish looks clean and the hex socket drive made them easy to torque down in tight spots.

The nylon patch on these screws holds tight even in high-vibration machinery, and the black oxide finish looks clean. I used them for a jig build and they seated perfectly in the tapped holes.