3/8-16 × 5-1/2" مسامير عربة | ملولبة بالكامل | فولاذ عادي A307 Grade A (200 / عبوة)

The square neck grabbed perfectly into the wood on my deck rebuild, no spinning or slipping at all—these are solid bolts. At 5-1/2 inches they’re just the right length for thick beams, and the 200 pack means I’ve got extras for the next project.

The rounded head sits flush against the wood, and the fact that they're fully threaded gave me plenty of bite when fastening a heavy gate together. These 5-1/2 inch bolts handled the job without a single issue.

The square neck on these bolts grabbed perfectly into the wood, so no spinning while I tightened the nuts—saved me a lot of frustration. All 200 pieces in the package looked clean and consistent, with no burrs or defects. Exactly what I needed for building a heavy-duty planter box.