M12-1.75 X 20mm 內六角螺絲 | 六角驅動 | 全牙 | 8.8 級合金鋼 熱處理黑色氧化 (100 個/包)

Had to swap out some worn bolts on a jig at the shop, and these M12 socket cap screws fit the bill perfectly—the hex drive seated cleanly without any stripping. Finish is consistent across the whole pack.

I was impressed by the clean black oxide finish on these M12 bolts—they resisted scratching when I tightened them into my jig. The 20mm length gave just enough thread engagement for a solid hold without bottoming out. A solid choice for precision tooling work.

The hex socket drive seated perfectly with my allen key, no stripping or wobble even under tight torque. Pack of 100 means I've got spares for my jig builds without reordering anytime soon.