M20-2.5 x 50mm 內六角圓頭螺絲 | 平頭六角驅動 | 全螺紋 | 10.9級合金鋼鍍鋅 (25 / 包)

I needed a bunch of heavy-duty bolts for a custom jig, and these M20s with the hex drive made tightening them a breeze. The full threading gave me plenty of grip in my thick steel plate.

Finally, a set of socket cap screws that don't strip when torquing down — the hex drive holds the bit firmly on these. I used them for a heavy jig assembly, and the Class 10.9 alloy steel definitely feels tougher than the standard hardware store stuff.

I needed a solid set of bolts for a heavy jig I was building, and these class 10.9 screws fit perfectly without any play. The hex socket drive grabbed firmly with my wrench, and the fully threaded length let me secure everything tightly.