براغي تجويف سداسية بنقطة كوب M5 × 30 مم | سبيكة فولاذ مطلية بالزنك (250 / عبوة)

Installed these as grub screws on a jig I'm building and the cup point bites really nicely into the soft aluminum. The 30mm length gives just enough thread engagement without being too long.

These set screws held tight after a full day of vibration on my workshop jig, which is more than I can say for the cheap ones I used before. The hex socket drive made installation simple even in that awkward corner.

The hex socket drive made torquing these down in a tight flange joint a breeze, and the cup point bit into the shaft exactly as needed. All 250 screws came out of the box clean with consistent threads, no duds in the batch.