براغي ذات رأس مقبس M12-1.75 × 130 مم | محرك مقبس سداسي | ملولبة جزئيًا | فئة 12.9 سبيكة فولاذ مطلية بالزنك (25 / عبوة)

The partially threaded design made installing these into my jig setup much easier than fully threaded bolts. The hex socket drive grabbed securely without any stripping, even at higher torque settings.

Pulled these out of the package for a jig build and was impressed with the precise threading—they seated smoothly without any binding. The zinc plating looks uniform and should hold up well in a machine shop environment.

Installed these on a jig for a production run and they torqued down perfectly without any stripping. The partial threading made alignment with the base plate straightforward.