براغي رأس سداسي M12-1.75 × 220 مم | فولاذ مقاوم للصدأ 316 | ملولبة جزئيًا (10 / عبوة)

Used these for a custom trailer hitch mount, and the 316 stainless steel held up perfectly in the rain without any rust. The partial threading made them easier to align than fully threaded bolts.

Installed these on a dock ladder that kept rusting with regular steel bolts—the 316 stainless is holding up perfectly after a month in saltwater. The hex head was easy to torque down with a socket, and the partial threading made alignment simple.

I needed longer bolts for a marine railing repair and these M12 220mm hex head screws fit perfectly, the 316 stainless feels solid and the partial threading made alignment much easier.