براغي رأس سداسي ثقيلة 1-1/4-7 × 3-1/2 بوصة | فولاذ مقاوم للصدأ 18/8 | ملولبة بالكامل (2 / عبوة)

These went on a trailer hitch rebuild and the 18/8 stainless hasn't shown a hint of rust after a wet winter. Fully threaded was the right call for the thick plate I was clamping. Heads took a breaker bar without rounding.

Threads are clean and cut well — no chasing needed, which isn't always the case with big stainless bolts. The 18/8 stainless should hold up fine outdoors, and at 3-1/2" long they torqued down snug on my equipment mounts.

These are seriously beefy — the 1-1/4 inch diameter heads take a big socket and the threads ran clean the whole way down. Used four of them bolting a trailer hitch plate to a steel frame and nothing stripped or galled. Stainless at this price for a 3-1/2" fully threaded bolt is hard to beat.