M8 x 55mm 內六角螺絲 | 六角驅動 | 合金鋼 (200個/包)

The threads on these screws are clean and started smoothly in my jig. They tightened down perfectly with no wobble, exactly what I needed for a precise assembly.

The hex socket drive grips my Allen key perfectly, no slipping even under high torque on a metal jig. These M8 x 55mm screws feel solid and consistent across the whole pack.

Straightened out a tricky jig alignment issue since the 55mm length gives just enough grip without bottoming out. These M8 bolts have a solid feel in the hand, not like the cheap hardware you sometimes get. Fit my torque wrench socket without any wobble.