براغي رأس سداسي مقاس 5/16-18 × 2-1/4 بوصة | صناعة أمريكية | فولاذ سبائكي من الدرجة L9 مطلي بالزنك الأصفر | ملولبة جزئيًا (100/عبوة)

I needed some high-strength bolts for a heavy-duty jig, and these Grade L9 alloy steel screws have been perfect — the yellow zinc coating already looks like it will resist rust well. The partial threading made alignment much easier on my equipment.

These are holding up great on my equipment jig. The yellow zinc finish is exactly what I wanted and the partial threading makes alignment a breeze.

Finally, a bolt that doesn't strip the moment I lean on it – the Grade L9 alloy steel is noticeably tougher than the usual hardware store stuff. The yellow zinc finish is even and didn't flake off during a rough install. These held firm on my milling machine table right out of the package, which is