براغي #4-40 × 5/16" مخروطية SEMS | رأس مسطح محرك مربع | فولاذ مطلي بالزنك ثلاثي التكافؤ (5000 / عبوة)

The cone point on these #4-40 screws bites into the metal cleanly every time, no wandering or stripped holes. The square drive holds tight without camming out, and the trivalent zinc finish looks even and corrosion-resistant. A full 5000 count means I won't run out mid-project, and they've been cons

The square drive on these #4-40 screws grabs perfectly without stripping, and the cone point makes alignment a breeze even in tight spots. The trivalent zinc finish looks clean and consistent across all 5,000 pieces—definitely a solid buy for general assembly work.

I've been through about half the box already on a sheet metal job, and the square drive holds the bit much better than a Phillips ever did. The cone point starts true and the threads cut clean without any binding.