مسامير عربة 1/4-20 × 4-1/2" | خيط كامل | ستانلس ستيل 316 (50/عبوة)

Finally got around to mounting some new railing brackets, and the square neck on these carriage bolts grabbed the wood perfectly so nothing spun while tightening. The 4-1/2 inch length was just right for the 4x4 post I was going through.

Installed these on a dock repair last weekend, and the 316 stainless held up perfectly against the saltwater spray without any rust. The full threading made fastening through thick planks a breeze.

The square neck grabbed the wood instantly on the first test piece, no spinning or wrench needed to hold it steady. These fully threaded 4-1/2" shafts gave me plenty of bite for a thick fence rail, and the 316 stainless is a relief knowing they'll shrug off the rain for years.