مسامير عربة 5/16-18 × 1-3/4 بوصة | كاملة الخيوط | فولاذ مقاوم للصدأ 316 (100 / عبوة)

The square neck grabbed the wood perfectly on my first try, no spinning or slipping at all. These fully threaded 1-3/4" bolts in 316 stainless are solid and the heads look clean on the finished side.

Finally, carriage bolts that don’t rust after one season near the coast—the 316 stainless is noticeably more corrosion-resistant than the 304 stuff I’ve used before. The square neck grabbed perfectly into the pressure-treated wood, so I didn’t have to wrestle with a wrench to keep the head from spin

Installed a set on a dock exposed to saltwater, and the 316 stainless steel is holding up perfectly with zero rust after two months. The square neck grabs tight just like it should.