براغي رأس مقبس 3/4-10 × 4 بوصات | محرك سداسي المقبس | صنع في الولايات المتحدة | فولاد سبائك مع أكسيد أسود حراري (25 / عبوة)

I needed heavy-duty screws for a jig I'm building, and these 3/4-10 x 4" alloy steel caps fit perfectly without any stripping. The hex socket drive grabbed tight with my Allen wrench, and the black oxide coating gives them a clean, professional look.

These screws are clearly strong enough for heavy jigs, the thermal black oxide finish is consistent and looks great, and the threads cut clean without any binding. I used them to mount a fixture plate and the 4" length felt solid and true.

The hex socket drive made tightening these into tight spots a breeze, and the black oxide finish seems tough. Fit perfectly in my milling fixture without any stripping.