M12-1.75 X 160mm 六角ボルト | クラス8.8鋼 黄亜鉛メッキ | 部分ねじ（25 / パック）

The partially threaded shaft made installing these on a jig fixture much easier than fully threaded bolts. The hex head seated perfectly with a standard socket, and the yellow zinc coating looks like it will hold up well.

Used these on a heavy equipment repair and the hex head seated perfectly with a socket wrench. The yellow zinc coating still looks good after a few days in a damp shop. Solid hold for the job without any wobble.

These arrived faster than I expected and the hex heads fit my socket wrench perfectly for tightening down some heavy machinery brackets. The yellow zinc coating looks durable, and the partial threading made alignment a breeze. Exactly what I needed for industrial fastening.