براغي رأس سداسي M30-3.5 X 120mm | فولاذ مقاوم للصدأ 316 | ملولبة جزئياً (5 / عبوة)

These hex cap screws are solid 316 stainless, and the partially threaded design worked perfectly for my machinery assembly project. The hex head grabbed the socket wrench securely without any slipping.

The partially threaded length left me just enough room to cinch down a heavy machine mount without bottoming out. The hex head took a socket easily and the 316 stainless feels like it will hold up in dry indoor use.

Installed these to secure a base plate on a saltwater pump system, and the 316 stainless is holding up perfectly against corrosion. The partial threading made alignment much easier than fully threaded bolts.