7/16-14 x 3-1/2" キャリッジボルト | 全ねじ | A307 グレードA プレーン鋼 (300 / パッケージ)

The square neck on these carriage bolts did exactly what it's supposed to — grabbed the wood tight so nothing spun while I cranked them down. All 300 came neatly packed with clean, consistent threads.

These bolts worked perfectly for building a heavy-duty workbench; the threads are clean and consistent on all 300 of them. The square neck grabbed the wood instantly with no spinning, which saved a ton of frustration.

The square neck on these carriage bolts locked into the wood perfectly, no spinning while I tightened the nut. A full 300 count box is great for a large deck project, and the threads were clean right out of the package.