مسامير نقل 5/16-18 × 2-1/4" | فولاذ مطلي بالزنك (100 / عبوة)

The rounded head and square neck on these bolts grabbed perfectly in the wood, no spinning while I tightened the nut. They went into pre-drilled holes on my trailer frame without any struggle.

Used these to build a little deck bench and the square necks held perfectly in the wood without spinning. The zinc finish feels smooth and should hold up fine outdoors with some weatherproofing.

I needed some heavy-duty fasteners for a storage rack I was building, and the zinc coating on these bolts looks like it will hold up well against rust. The square neck under the head grabbed the wood perfectly, keeping them from spinning while I tightened the nut.