براغي رأس مقبس M20-2.5 × 200 مم | محرك مقبس سداسي | ملولبة جزئيًا | فولاذ سبائكي فئة 12.9 مطلي بالزنك (10 / عبوة)

Third order of these for various shop fixtures, and the zinc plating is consistently smooth with no flaking around the socket. The 200mm length with partial threading gives me the exact grip I need for clamping thick plates without shimming.

Used these in a heavy-duty jig I've been building, and the 12.9 alloy steel held up perfectly under high torque without any deformation. The partial threading made alignment a breeze during assembly.

Finally, a screw that doesn't strip under high torque — the hex socket held up perfectly on my production jig. The zinc coating looks uniform and clean, which is a nice bonus for exposed fasteners.