M8 X 8mm 錐形點六角凹槽螺絲 | 合金鋼 (250 入/包)

The cone point bites into the shaft exactly where I need it, and the hex socket lets me torque it down firmly even with the pulley in the way. Alloy steel feels plenty sturdy for the job. Not a single stripped head across the whole pack of 250.

Used these to secure a pulley onto a motor shaft, and the cone point bit into the keyway perfectly without slipping. The alloy steel feels plenty tough for the torque I’m applying, and the hex drive let me get them snug in a cramped spot.

The hex socket drive made installing these in tight spots a breeze—my impact driver grabbed them perfectly. All 250 pieces look consistent with clean threads and no burrs.