براغي ضبط رأس كوب M4 × 15 مم | سبائك صلب مطلي بالزنك (500 / عبوة)

The cup point bites in perfectly and holds fast even under vibration, which is exactly what I needed for a stubborn pulley repair. These M4 screws fit my hex driver snugly and the zinc plating looks clean and corrosion-resistant out of the box.

These set screws have a nice, clean hex socket that grips the hex key without any stripping. The cup point grips well, and the zinc plating looks uniform across all 500 pieces.

The cup point really digs in and holds firm, which is exactly what I needed for adjusting some jig components. The hex socket drive made it easy to install in a tight corner with just a standard L-key.