براغي رأس مقبس M14-2 × 40 مم | محرك سداسي مسطح الرأس | ملولبة بالكامل | فولاذ سبائكي فئة 12.9 أسود حراري (50 / عبوة)

Put these on a heavy-duty jig I was building, and the hex socket drive made installation a breeze even in tight spots. The black oxide finish looks clean and seems like it'll hold up well against oil in my shop.

I needed a high-strength fastener for a jig rebuild, and the thermal black oxide finish on these M14-2 screws is holding up perfectly against shop grime. The flat head sits flush in the counterbore, and the hex socket drove smoothly without any cam-out. Great value for a 50-pack of class 12.9 hardwa

The hex socket drive gripped my allen key perfectly with zero stripping, and the black oxide finish feels properly durable. These are going straight into my next jig build.