M8 X 12mm 杯端內六角止付螺絲 | 316不鏽鋼（每包250入）

The hex socket drive made torquing these into tight spots a breeze, and the 316 stainless gives me peace of mind against corrosion. I've used half the pack already on a marine project and every single one seated cleanly without stripping. Exactly what I needed for a set-and-forget fastening job.

I was a little worried about soft screws stripping in tight spots, but the hex socket drive on these bites deep and held up perfectly. The cup point tip really digs in and locks down whatever I'm adjusting without needing much torque.

These set screws tightened down perfectly in a tight motor mount bracket where I couldn't get a wrench. The hex socket drive made it easy to torque them into place without stripping, and the 316 stainless gives me peace of mind against rust.