M24-3 x 50mm 內六角螺絲 | 平頭內六角驅動 | 全螺紋 | 10.9級合金鋼鍍鋅 (10顆/包)

The hex socket drive really grips the hex key, no slipping even at high torque on my jig assembly. These feel solid for the price, zinc plating looks clean. Exactly what I needed for heavy machinery repairs.

Finally found some M24-3 x 50mm socket cap screws that actually fit my jig perfectly—the Class 10.9 alloy steel feels incredibly sturdy under torque. The zinc plating seems like it’ll resist rust well in my shop. Exactly what I needed for heavy-duty tooling.

Installed these in a jig for a drilling fixture and the 10.9 alloy steel held up fine under load. Only wish the heads were a bit deeper for the hex key to grab, but they work.