M12-1.75 x 25mm 內六角螺絲 | 平頭內六角驅動 | 全牙 | 合金鋼 12.9 級鍍鋅 (100 / 包)

The hex socket drive gripped perfectly without any stripping, and the zinc plating on these M12 bolts gives them a clean, corrosion-resistant finish. I used them for a jig build and they seated flush just as expected.

Replaced the stripped Allen heads on my mill’s hold-downs with these, and the 12.9 alloy steel took the torque without a hint of twisting. The zinc plating looks uniform and hasn’t flaked after a week of clamping.

Perfectly sized for my jig setup the hex drive seats cleanly in a standard wrench. The zinc plating looks consistent on all 100 pieces no burrs or defects.