مسامير ماكينة 3/8-16 × 6" | رأس عريض محزوز، محرك مشترك | فولاذ مطلي بالزنك (100 / العبوة)

Packed a full box of these for a shed frame repair and every single one threaded cleanly into the pilot holes—no stripped heads, no bent shafts. The zinc finish looks even and should hold up fine against the occasional damp morning out here.

The combination drive is a real plus—I can grab a Phillips or flathead depending on what’s within reach. Finish is smooth and the threads cut cleanly into steel; I’ve already used half the box on a garage rack and they’re holding solid.

The combination drive on these screws is a nice touch—lets me use either a Phillips or flathead without switching bits. They threaded cleanly into my steel brackets with no binding, and the zinc plating looks even and consistent across all 100 pieces.