براغي رأس سداسية M36-4 × 140 مم | فولاذ عادي درجة 8.8 | ملولبة جزئيًا (2 / عبوة)

Used these to secure a heavy press base to the concrete floor—the coarse threads bit nicely and the hex head gave me plenty of torque. The partially threaded shank made alignment much easier than fully threaded bolts.

Threading was smooth even at this size, and the hex head gripped my 55mm wrench perfectly for torquing down a heavy press frame. These class 8.8 bolts feel solid with no burrs on the partial thread section. Exactly what I needed for a stubborn equipment repair.

The partially threaded design made alignment much easier on my press frame than fully threaded bolts would have. These M36-4s seated firmly with just a standard socket wrench, no wobble at all.