براغي ذات رأس سداسي 5/8-11 × 5-1/2 بوصة | صناعة أمريكية | درجة L9 فولاذ سبائكي أصفر زنك | ملولبة جزئيًا (25 / عبوة)

I needed some serious bolts for a heavy equipment repair, and these Grade L9 cap screws held up perfectly under a lot of torque. The yellow zinc finish looks good and seems durable, and the partial threading made installation a breeze.

These bolts threaded perfectly into my press frame without any binding, which I’ve had trouble with using lesser-grade hardware. The yellow zinc finish hasn’t shown any rust after a few weeks in a semi-damp shop.

Used them to bolt down a jig table at the shop and they seated perfectly with a socket, no galling on the threads at all. The yellow zinc finish is holding up fine so far, and the partial threading kept everything snug without bottoming out. Solid pick if you need heavy-duty fasteners that don't fig