مسامير نقل 1/4-20 × 5/8 بوصة | كاملة الخيوط | ستانلس ستيل 316 (200 / عبوة)

I used these to build a cedar planter box, and the 316 stainless steel gives me confidence they won't rust out in wet soil. The fully threaded design let me drive them in without the head stripping.

The square neck on these carriage bolts really holds tight so they don't spin as you fasten them, and the 316 stainless steel feels solid enough for outdoor use. I used a whole bag on a dock repair and every one seated clean without stripping.

The square neck on these grabbed perfectly into the wood, so I didn't need a second wrench to tighten them down. The 316 stainless feels noticeably heavier than the cheaper hardware I've used before; they're definitely worth the extra cost for outdoor projects.