M8-1.25 X 90mm 內六角螺絲 | 內六角驅動 | 部分螺紋 | 12.9級合金鋼 鍍鋅 (100 / 包)

The hex socket drive made torquing these down to spec effortless, and the 90mm length gave me just enough thread engagement for a heavy tooling fixture. Zinc plating looks uniform across all 100 pieces, no burrs on the threads that I could find.

Finally got my milling vise mounting sorted—these 90mm bolts are just long enough for a thick plate setup. The zinc plating looks clean and the 12.9 hardness gives me real confidence against stripping.

The partially threaded design on these 90mm socket cap screws made aligning them in my jig much easier than standard bolts. The hex socket drive held up perfectly under some serious torque from my impact driver. Exactly what I needed for a heavy machinery repair.