براغي رأس مقبس M22-2.5 × 55 مم | محرك مقبس سداسي | كاملة الخيوط | فولاذ سبائكي فئة 12.9 مطلي بالزنك (10 / عبوة)

The hex drive on these bolts gripped my Allen key perfectly without any slippage during tightening. Used them to secure a metal bracket on a workshop press and the 12.9 alloy steel feels rock solid.

Just installed these on a heavy-duty jig I'm building, and the hex socket drive made tightening them in a tight spot so much easier than a regular bolt. The 12.9 grade steel feels incredibly solid for the price, and the full threading gave me plenty of grip.

The zinc plating on these 12.9-grade screws is flawless, and the hex socket drive sits perfectly flush with the head. They threaded into my precision tooling without any binding, and the 55mm length was exactly what I needed for the fixture.