مسامير عربة مقاس 5/16-18 × 1 بوصة | ملولبة بالكامل | فولاذ مقاوم للصدأ 316 (100 / عبوة)

Picked up a pack for a small fence project, and the square neck under the head really does bite into the wood perfectly—no spinning at all. The 316 stainless feels solid, and I haven't spotted a single spot of rust yet despite a few wet days.

I used a few of these to build a dock repair and the 316 stainless is exactly what I needed to hold up in saltwater, no rust after a month. The square head really does lock tight into the wood so I didn’t have to use a wrench on the back.

The square neck on these 316 stainless bolts grabbed perfectly into the wood, so I didn't have to hold the head while tightening. I've used cheaper ones before that rounded off, but these held up well.