مسامير عربة 5/8-11 × 4-1/2 بوصة | ملولبة بالكامل | فولاذ عادي درجة A307 (20/عبوة)

The square neck under the head grabbed the wood instantly, so I didn’t have to wrestle with a wrench to keep them from spinning while I tightened the nuts. Threads were clean and cut all the way up, which made sinking them into my project quicker than I expected. For twenty heavy-duty bolts at this

The square neck grabbed instantly when I tightened the first one, no spinning at all. These 5/8-inch bolts feel solid and the threading was clean all the way.

Finally a set of carriage bolts where the threads run all the way to the head, so I could fasten a thick bracket without having to cut anything down. The rounded head sits flush and looks clean on the finished side.