براغي رأس كبس #8-32 × 7/8 بوصة | محرك سداسي | حبيبة نايلون | ملولبة بالكامل | فولاذ سبائكي أسود حراري (100/عبوة)

I was pleasantly surprised by how precise the threading is on these—they seated perfectly in my jig without any cross-threading. The black oxide coating gives them a nice, uniform look too, which matters for the tooling I’m building.

The hex socket drive made these a breeze to install in my jig, and the black oxide finish looks clean and professional. The nylon pellet really does help them stay put under vibration, which is perfect for my precision assembly work. Exactly what I needed for this project.

I’ve been using these for jig assembly, and the black oxide finish has held up perfectly with no rust after several weeks in a humid shop. The hex socket drive makes them a lot easier to install than slotted screws.