M6 X 30mm 滾花杯端內六角止付螺絲 | 合金鋼 (250 / 包)

The hex socket drive made tightening these in a cramped spot under my workbench much easier than I expected. Each screw seated cleanly without stripping, and the knurled cup point held firm even under repeated adjustments. For the price, getting 250 of these alloy steel fasteners feels like a solid

I was honestly surprised how securely these knurled cup point screws hold—even in a vibrating machine tool, they haven't budged. The hex socket drive made installation in that cramped bracket a breeze, and the alloy steel feels plenty durable for the price.

The knurled cup point really bites into the metal surface without stripping, which saved me on a tricky jig setup. Only minor gripe is that a few screws had slightly rough threads, but they still worked fine after a quick pass.