براغي رأس سداسي M6-1 × 35mm | محرك رأس سداسي مجوف | خيط كامل | فئة 10.9 فولاذ سبائكي مطلي بالزنك (400/عبوة)

The hex socket drive is exactly what I needed for tight spots on a precision assembly—no stripping or rounding even under heavy torque. The zinc plating is evenly applied, and the 10.9 hardness feels solid. Counted the bag and got a full 400, which is rare these days.

Put these in a jig build this weekend and every single screw threaded in smoothly with no binding. The flat head sits flush and the zinc coating looks like it'll hold up fine in a shop environment.

The hex socket drive sits deep and clean, so my Allen key gripped every single one without stripping. Threads ran smooth into tapped holes on my tooling setup, and the zinc finish looks uniform across all 400.