مسامير عربة 5/16-18 × 3-3/4 بوصة | كاملة الخيوط | فولاذ مجلفن درجة A307 (100/عبوة)

The square neck under the head grabbed the wood instantly when I tightened them, no spinning or stripping even with the fully threaded design. Zinc coating looks clean and uniform across all 100 pieces, and they’re holding strong on the swing set frame I just put together.

Just finished building a new gate and these bolts were exactly what I needed. The fully threaded shaft made it easy to get a tight fit with the nut, and the zinc plating looks clean and durable.

The square neck grabbed perfectly into the wooden post I was attaching, so none of these bolts spun while I tightened the nut down. For the price, having exactly one hundred fully threaded carriage bolts in a single package saved me an extra trip to the hardware store.