M14-2×150mm 六角ボルト | 強度区分10.9 鋼 無処理 | 半ねじ (25本/袋)

Threading was consistent across all twenty-five bolts, so my impact wrench seated them flush without any binding. The 150mm length gave me just enough bite into the steel frame for a solid hold.

I used these to mount a heavy conveyor frame, and the 150mm length with partial threading gave just the right grip depth. The class 10.9 rating made torquing them to spec feel secure without any deformation.

I was pleasantly surprised by the hex head design—my socket wrench grabbed it securely without slipping. The partial threading made alignment in tight spots much easier, and all 25 pieces arrived in perfect condition.