براغي رأس سداسية 5/8-18 × 3-1/4 بوصة | صناعة أمريكية | فولاذ سبائكي درجة L9 مطلي بالزنك الأصفر (150 / عبوة)

Threads started smooth in the tapped holes and the yellow zinc coating looks like it will hold up well in my shop. These are exactly what I needed for some equipment repairs.

I needed heavy-duty fasteners for a press rebuild and these L9 alloy steel hex heads handled the torque without stripping. The threading was clean right out of the box, and all 150 pieces had consistent zinc coating.

The yellow zinc coating on these bolts is surprisingly even and durable—no flaking or uneven spots like cheaper packs I've tried. Snugged down a critical bracket on my press with a standard socket, and the hex head engaged perfectly without stripping.