HOLO-KROME 33074 براغي ضبط ذات رأس مقبس بنقطة كوب 1/4-28 × 1/4 بوصة | فولاذ سبائكي مع أكسيد أسود حراري (100 / عبوة)

The black oxide finish feels really durable and the hex drive engages perfectly without stripping. Used these to secure a pulley on a small motor shaft and they held tight through the first test run.

These cup point screws fit perfectly into the tapped holes on my fixture, and the hex socket drive made installation a breeze with no stripping. The black oxide finish seems durable and gave them a clean, professional look. Exactly what I needed for clamping components on a small shaft assembly.

Used a handful of these in a recent shaft collar project; the hex socket drive makes them easy to tighten in tight spaces. The black oxide finish seems tough and should resist rust well, which is exactly what I needed for this industrial application.