براغي رأس مقبس M8-1.25 × 120 مم | رأس مسطح محرك مقبس سداسي | ملولبة جزئيًا | فئة 12.9 سبيكة فولاذ مطلي بالزنك (100 / عبوة)

The threading runs clean all the way down, and the zinc plating looks even with no bare spots. Used a dozen on a jig build, torqued them properly, and they held without a hint of stripping.

Using these for precision fixture assembly and the partially threaded shank makes alignment much easier than fully threaded bolts. The 12.9 alloy steel is definitely harder than standard grade 8. They drive smoothly with good bite and the zinc finish looks consistently clean across the pack.

Needed these for a jig I was putting together, and the partially threaded design grabbed perfectly in the right spot. They’re solid and the zinc coating looks like it’ll hold up well in the shop.