مسامير عربة 3/8-16 × 12 بوصة | فولاذ عادي A307 درجة A (20 / عبوة)

The square neck on these 12-inch carriage bolts grabbed tight into the wood as I tightened them, no spinning at all. Perfect length for heavy ledger board fastening on my deck project.

I needed a full dozen 12-inch carriage bolts for a heavy timber project, and these A307 Grade A plain steel threads cut cleanly into the wood without any stripping. The square neck held fast as I tightened the nut, just like it should.

The square neck grabbed tight into the wood as I tightened the nut, no spinning at all—exactly what I needed for my deck project. These 12-inch bolts are solid and the plain steel finish looks clean.