مسامير عربة 1/2-13 × 6-1/2 بوصة | فولاذ عادي A307 درجة A (20/عبوة)

Installed these on a new deck build and the square neck grabbed perfectly into the wood, so no spinning or slipping during tightening. The 6-1/2 inch length gave just enough thread for a nut and washer on a 2x6 board.

These are longer than the ones at the big-box store, and the 6-1/2" length gave me plenty of thread for a thick deck post repair. The square neck seated firmly into the wood so I didn't need a second wrench to stop them spinning.

The square neck under the head grabbed nicely into the wood, just like it should, and all 20 bolts in the package had clean, consistent threads. I used them to secure a heavy gate and haven’t had any slippage at all.