براغي رأس سداسي 5/16-18 × 1-1/4 بوصة | فولاذ درجة 5 زنك أصفر | ملولبة بالكامل (1100 / عبوة)

I needed a full box of 1100 for a frame assembly and these worked perfectly with a socket driver. The threads are clean and consistent, so they drove in smoothly without binding.

The yellow zinc coating is a nice touch, didn’t expect it to look this clean for bulk hardware. These fully threaded 5/16-18s grab evenly along the whole shaft, made reattaching a jig really straightforward.

The hex head on these is well-formed and didn't strip when I cinched them down with a socket. Got a whole box for a fraction of what the hardware store wanted, and the yellow zinc coating looks uniform across all pieces.