#8-32 x 1-9/16" 內六角螺絲 | 六角驅動 | 部分螺紋 | 合金鋼熱處理黑色氧化 (100個/包)

The socket drive is crisp and the black oxide finish is nicely uniform across all 100 pieces. Threads engaged cleanly on my fixture plates without any binding, and the partially threaded length gave me just the right grip for a tight clamp setup.

Alloy steel with that black oxide finish made these hex socket screws feel a lot more durable than I was expecting. They threaded perfectly into my small jig fixture, and the partial threading caught exactly where I needed it to.

Used a handful of these to build a jig in my shop and the partial threading really helped with alignment. The hex socket drive made tightening in tight spaces much easier. One or two had slightly shallow drive sockets, but overall they work great.