M12-1.75 x 50mm 內六角螺絲 | 內六角驅動 | 全牙 | 8.8級合金鋼鍍鋅 (100 顆/包)

I used these to build a sturdy jig for my milling machine, and the class 8.8 alloy steel feels plenty tough for the job. The zinc plating is holding up well even in my damp garage.

The hex socket drive makes tightening them in tight spots on my milling fixture so much easier than standard bolts. The zinc coating looks clean and seems like it'll resist rust well in my shop.

I’ve been using these for a few jigs in my shop, and the hex socket drive makes them much easier to torque down in tight spots than a standard hex head. The threading is clean and consistent across all 100 pieces.