براغي رأس سداسي ثقيل مقاس 1-1/4-7 × 6 بوصة | صناعة أمريكية | فولاذ A307 درجة B مطلي بالزنك | ملولب جزئيًا (15/عبوة)

The partially threaded design made installation much easier than fully threaded bolts I've used before, and the zinc coating looks clean and rust-resistant. These screws feel solid in hand and were exactly what I needed for mounting some heavy machinery guards.

Needed a heavy-duty fastener for some equipment mounting, and these partially threaded screws grabbed nicely without stripping. The zinc coating on the A307 Grade B steel has held up well so far.

The threads on these 1-1/4-7 x 6" screws cut clean and the zinc coating looks uniform right out of the package. Used them to bolt down a heavy machine base and they drove in without a hitch, the partial thread length gave just the right grip.