M16-2 X 290mm 六角ボルト | 316ステンレス鋼 | 半ねじ (5本/袋)

Used these to secure a heavy steel bracket on a dock repair, and the 316 stainless is holding up beautifully against the saltwater. The partially threaded design made alignment much easier than fully threaded bolts would have.

Threads were clean and the hex head seated perfectly in my socket wrench—no stripping even with a breaker bar. These 316s feel solid for outdoor equipment, though the partial threading meant I had to add washers to get the right grip.

These bolts were just what I needed to secure a heavy machine base at work; the 316 stainless steel feels solid and the hex head gripped my socket perfectly.