براغي ذات رأس أسطواني مقاس 5/8-18 × 1 بوصة | محرك سداسي | صناعة أمريكية | فولاذ سبائكي مع أكسيد أسود حراري (375 / عبوة)

I needed a full box of these for a jig rebuild, and the hex socket drive made install much easier than a standard hex head. The alloy steel feels plenty tough for the torque we're putting on them.

The black oxide finish on these is flawless — no flaking or uneven spots across the whole box of 375. Threads cut cleanly into my tooling plates without binding, and the hex socket drive grabs perfectly with a standard Allen key.

I needed heavy-duty screws for a jig I’m building, and these 5/8-18 x 1" alloy steel caps fit perfectly with no stripped threads. The hex socket drive made installation smooth, and the black oxide finish looks professional.