مسامير نقل 3/8-16 × 4 بوصة | ملولبة بالكامل | فولاذ عادي A307 درجة A (75 / عبوة)

The rounded heads look clean on my project, and the square neck really does bite into the wood to stop spinning during installation. I’ve got a full 75-count box, which is plenty for all the heavy framing I’m doing this weekend.

Needed a solid batch for building a heavy-duty planter, and these fully threaded carriage bolts didn't spin or strip while I was tightening them. The square neck under the dome head really does grip the wood and lock it in place perfectly.

The 4-inch length worked perfectly for my deck repair, and the A307 steel feels solid enough for outdoor framing. Only wish the pack came with a few extra washers, but the fully threaded design made tightening straightforward.