M5-0.8 X 20mm 六角穴付きボルト | クラス10.9 スチールプレーン | 全ねじ (600本/パック)

These hold up perfectly under the torque from my impact driver on a small assembly line fixture, and the fully threaded length gives me plenty of grip. Pack of 600 should last me a good while.

Needed a batch of these for a jig I was building, and the fully threaded design made alignment much easier. The class 10.9 steel feels plenty sturdy for the torque I’m applying, and the hex heads grab the wrench nicely.

The hex heads seat perfectly in a 5mm socket, and the fully threaded shaft gives a solid bite every time. I ran through a couple of hundred of these on a jig build and didn't strip a single one. For the price per piece, they're a no-brainer for production work.