براغي ضبط سداسية مجوفة برأس كروي مع رقعة نايلون 1/2-13 × 1-3/4 بوصة | سبيكة فولاذ (50 / عبوة)

The hex drive made tightening these in a tight engine bay so much easier than using a standard wrench. The cup point really bites into the metal, and the nylon patch keeps them from vibrating loose.

The nylon patch on these set screws holds them in place even under vibration, which saved me from having to constantly retighten. The cup point bites into the shaft nicely, and the hex drive makes installation a breeze in tight spots.

These hex drive screws fit perfectly into my jig fixtures and the cup point tip makes alignment so much easier in tight spots. The nylon patch is a nice bonus for keeping them from backing out during assembly.