براغي ماكينة 5/16-18 × 5 بوصة | رأس مسطح مع محرك مشقوق | فولاذ مقاوم للصدأ 18/8 (100/عبوة)

The flat head sits flush and clean in the counterbore I drilled, and the slotted drive worked fine with a standard screwdriver. I’ve had trouble with cheaper stainless stripping before, but these 18/8 screws felt solid threading into steel. Exactly what I needed for an outdoor railing repair.

These 5-inch machine screws held up perfectly when I used them to fasten a heavy gate latch outdoors. The 18/8 stainless steel is definitely corrosion-resistant, and the slotted drive gave me solid grip with my flathead bit.

The slotted heads on these screws are cut deep and clean, so a standard driver bit gets solid purchase without camming out, and the 5-inch length handles really thick brackets with room to spare.