HOLO-KROME 60002 براغي رأس أسطواني #4-40 × 1/4 بوصة | رأس مسطح مع محرك سداسي | فولاذ سبائكي مع أكسيد أسود حراري (100 / عبوة)

The black oxide finish on these #4-40 screws looks really clean and professional in my jig setup. The socket drive felt tight and secure when I torqued them down—no stripping or wobble. They hold better than the zinc-plated ones I used before.

These little #4-40 screws fit perfectly into my jig setup, and the hex socket drive made installation a breeze with no stripping. The flat head sits flush, which is exactly what I needed for a clean finish.

These little screws are perfect for my small jig builds; the black oxide finish looks great and the hex drive makes installation much easier than using a tiny flathead. They're a bit pricey, but when you need a secure #4-40 in a tight spot, these are exactly what you want.