1/2-13 × 4" مسامير عربة | ملولبة بالكامل | A307 درجة A فولاد عادي (30 / عبوة)

The square neck grabbed into the wood really well, so I didn't need to hold the bolt while tightening from the other side. For a 30-pack of these 4-inch carriage bolts, the price felt fair given how solid the steel seems. I used them to rebuild a garden bench and everything stayed snug.

The square neck grabbed the wood right away on my deck project, no extra wrench needed to hold it still while I cranked the nut down. I used all thirty to build a picnic table frame, and they’re solid enough to trust with heavy weight.

The square neck grabbed perfectly into the wood as I tightened them, which was a huge relief since I was working alone on a deck repair. These 4-inch carriage bolts are a solid choice for heavy-duty projects, and the 30-pack is great to have on hand.