براغي رأس كبس M6-1 × 55 مم | محرك سداسي برأس مسطح | ملولبة جزئيًا | فولاذ سبائكي فئة 12.9 مطلي بالزنك (200 / عبوة)

The hex drive on these M6-1 x 55mm screws fits my Allen key perfectly, and the zinc plating looks clean and even across all 200 pieces. I used them to secure a jig on my drill press, and the Class 12.9 alloy steel feels noticeably tougher than standard hardware. Really glad to have found a bulk pack

Finally found some M6 bolts with enough grip length for a custom jig I’m building—these threaded smoothly into tapped holes without any binding. The zinc plating looks uniform and should hold up fine in my shop.

The partial threading on these M6-1 x 55mm screws is exactly what I needed for clamping down a jig without bottoming out, and the zinc plating looks clean and uniform across all 200 pieces. They cinched up tight with a hex key and held firm during a full day of milling.