M12-1.75 X 210mm 六角ボルト | クラス8.8鋼 無処理 | 部分ねじ (25 / パック)

These bolts were exactly the right length for the heavy machinery I’m assembling, and the hex head makes them easy to tighten down properly. The partial threading gives just enough grip without needing a nut on the other side.

Worked perfectly for securing a motor mount on a press — the partial threading saved me from having to cut down a fully threaded bolt. Fit an M12 socket wrench just right, and the 210mm length gave me plenty of grip.

Needed a set of heavy-duty bolts for a press build, and the hex heads on these grabbed a socket perfectly without any rounding. The 210mm length was just right for getting through multiple steel plates, and the 8.8 grade gives me confidence they'll hold under load.