براغي رأس مقبس 1-8 × 20 بوصة | محرك سداسي | ملولبة جزئياً | فولاذ سبيكة مؤكسد حراري أسود

I needed some long bolts for a custom jig build, and these 20-inch socket cap screws fit perfectly. The black oxide finish looks clean and should hold up well in my workshop.

The 20-inch length and partial threading gave me the exact grip range I needed for my jig setup, and the hex socket drive seated cleanly without any wobble. For the price per bolt, the alloy steel finish feels like it will outlast the rest of my hardware bin.

The partially threaded design grabbed cleanly when I set them into my tooling fixture, and the black oxide finish hasn't chipped despite a few hard torques. For a 20-inch length, they stayed perfectly straight during installation, which is exactly what I needed for a precision assembly.