مسامير عربة 3/8-16 × 3 بوصة | ملولبة بالكامل | فولاذ عادي درجة A307 (450/عبوة)

Got these for a retaining wall I’m building, and the square neck grabbed into the wood right away without spinning. The 3-inch length was just right for sandwiching two 2x6s, and the plain steel finish is exactly what I needed for a project that’ll get painted anyway.

I needed a hundred for a fence gate project, and every single one of these fully threaded 3/8-16 x 3" bolts threaded smooth and the square neck gripped tight. No stripped heads or bent shanks in the whole box.

Installing these on a pergola, the square neck grabbed the wood immediately and kept every bolt from spinning as I tightened the nut. The fully threaded length gave me plenty of grip for thicker beams, and the pack of 450 should last through several projects. For plain steel carriage bolts, the fini