مسامير عربة مقاس 1/2-13 × 5-1/2 بوصة | ملولبة بالكامل | فولاذ مطلي بالزنك من الدرجة A307 Grade A (30 / عبوة)

Was building a deck and needed bolts that wouldn't spin while I tightened the nut — these worked perfectly, the square neck seated itself right into the wood. The zinc plating seems solid too, no rust after a week of rain.

The square neck really grabbed and held tight as I drove it into the treated lumber—no spinning at all. These bolts feel sturdy and the threads were clean, making assembly quick. Just what I needed for my deck project.

The zinc plating looks clean and even on all 30 bolts, and the square neck seated perfectly into the wood without any spinning. I used them for a heavy gate hinge replacement and they held up exactly as expected.