مسامير عربة 1/2-13 × 11 بوصة | فولاذ مقاوم للصدأ 316 (10/عبوة)

Used three of these to fasten a heavy wooden beam to a concrete post, and the 316 stainless held up perfectly against the rain we've been having. The square neck grabbed tight without any slipping as I tightened the nut down.

The square neck on these carriage bolts locked into the wood perfectly, no spinning at all during installation. The 316 stainless steel feels solid and heavy, exactly what I needed for a marine project.

I was replacing the bolts on a dock ramp and the 316 stainless held up perfectly in the salt water, no signs of rust after a month. The square neck grabbed the wood tight so I didn’t need a second wrench to keep the head from spinning.