M30-3.5 X 200mm 六角頭螺絲 | 8.8級鋼鍍鋅 | 部分螺紋 (2 入/包)

I needed a heavy-duty bolt for a press frame repair, and these M30 partially threaded screws were a perfect fit. The hex head gave my socket wrench great bite, and the 200mm length let me sink them deep into the assembly.

The zinc coating held up well during a heavy assembly job, no rust in sight. These hex heads fit my socket perfectly without slipping, and the 200mm length was just right for the deep channel I needed to bolt.

The thread pitch grabbed perfectly on my first try, and the zinc coating looks uniform across all six sides of the head. I've used cheaper bolts before where the plating flakes off, but these held up fine when I torqued them down on the press frame.