1/4-20 × 4" مسامير عربة | ستانلس ستيل 18-8 (80 / عبوة)

I’ve been using these carriage bolts for a metal shelf project, and the 18-8 stainless steel holds up nicely in my damp garage. The 1/4-20 thread size made them easy to secure with standard nuts, and the four-inch length gave me just enough reach through the wood and steel.

These bolts were perfect for assembling my garden trellis frame; the stainless steel threads cut into the wood cleanly without stripping. Every single bolt in the 80-pack had a consistent, sharp thread, which made the whole job go faster than I expected.

Installed these on a dock repair last weekend and the stainless held up perfectly in the saltwater. The 4-inch length gave just enough bite through pressure-treated lumber without needing a washer.