براغي رأس أسطوانية M14-2 × 200 مم | محرك سداسي | ملولبة جزئيًا | فولاذ سبائكي فئة 12.9 أسود حراري (25/عبوة)

Needed a heavy-duty fastener for a jig I’m building, and these 12.9-grade screws are noticeably tougher than the hardware-store ones. The black oxide finish looks clean and seems durable so far, and the partial threading gave me just the right grip depth.

I'm using these M14x200 screws in a custom jig I built for my workshop, and the partially threaded design made alignment so much easier than fully threaded bolts I've used before. The hex socket drive grips well with my Allen key, and they feel incredibly solid for the price.

The black oxide finish is a nice touch, giving them a uniform look straight out of the pack. I used them to build a steel fixture and the partial threading grabbed cleanly the whole way in, plus the 12.9 rating means I don't worry about them snapping under load.