براغي رأس مقبس M3-0.5 × 5 مم | رأس زرية بمحرك سداسي المقبس | ملولبة بالكامل | فولاذ سبائكي درجة 10.9 مع أكسيد أسود حراري (800/عبوة)

I was pleasantly surprised at how uniform the black oxide finish is across all 800 screws. They thread smoothly into my aluminum jigs without binding, saving me time on cleanup.

Exactly the right length for my jig builds — no trimming needed, and the black oxide finish hasn't shown a speck of rust after a few weeks in the shop. At 800 pieces per package, I've got plenty of spares for the next few projects. The class 10.9 alloy steel feels solid under the hex driver, too.

The hex socket drive grips my Allen key perfectly, no stripping even after tightening a dozen into my jig. Black oxide finish looks clean and the 800-count box means I won't need to reorder for months.