براغي رأس كابسية سداسية خارجية M16-2 × 55 مم | درجة 8.8 صلب عادي | سنون كاملة (50 / عبوة)

Put these on a heavy press jig, and every one seated flush with no stripping—the full threading really helps in tight spots. The 8.8 steel feels solid and hasn't budged after a week of vibration.

Used a whole pack mounting a steel conveyor frame—every thread grabbed cleanly with no cross-threading. The Class 8.8 steel feels tough enough for heavy vibration, and the full threading gave me plenty of grip depth.

I needed these for a piece of farm equipment, and the fully threaded design made it easy to adjust the clamping force. The hex heads grabbed perfectly with my socket wrench, no stripping.