براغي رأس سداسية مجوفة مدببة كوبية M3 × 16 مم | فولاذ سبائكي (100/عبوة)

The cup point on these M3 screws bit into the shaft perfectly, holding my pulley firmly in place. Alloy steel feels sturdy enough for light industrial use, and the 100-pack will last me years.

I needed these for a small gear repair and the cup point really bit into the shaft securely. The alloy steel feels tough and the hex drive seated perfectly with my wrench, no stripping at all. Exactly what I needed for the job.

The recessed hex drive grips the Allen key tightly, so no stripped corners when tightening a pulley set screw. Holding a timing gear perfectly flush with zero wobble—exactly what my motor mount needed.