مسامير عربة 1/2-13 × 9-1/2" | فولاذ عادي درجة A307 (20 / عبوة)

I needed heavy-duty carriage bolts for a timber frame project, and these 9-1/2 inch A307s are exactly what I was after. The smooth rounded head sits flush and looks clean, plus the square neck locks in tight without spinning.

The square neck on these bolts grabs perfectly into the wood, so they didn't spin at all while I tightened them down. All twenty in the pack are exactly the same length and thread, which made quick work of framing a big swing set.

I needed these for a heavy-duty deck repair and the square neck under the head really bit into the wood, stopping any spinning. They drove in cleanly and held tight even through pressure-treated lumber, exactly what I was after.