براغي ماكينة 5/16-18 × 1-3/4 بوصة | رأس مستدير بمحرك مشقوق | فولاذ مطلي بالزنك (400 / عبوة)

Had to fasten some metal brackets to a thick steel frame, and these screws worked perfectly—the slotted drive let me use a standard flathead screwdriver without any slipping. The 1-3/4" length gave just enough bite to hold tight.

The zinc plating on these screws gives them a clean, uniform look, and the slotted drive bit into the metal enclosure without stripping. Perfect for mounting panels securely—exactly the quantity I needed for a full project.

I needed a solid count for a metal enclosure project and these definitely delivered, the zinc plating makes them look clean and resist rust well. The slotted drive was easy to work with using a standard screwdriver, and the 1-3/4" length gripped perfectly through 1/4" steel brackets.