HOLO-KROME 76256 M8-1.25 X 45mm 六角承窩螺絲 | 六角承窩驅動 | 合金鋼 熱黑氧化物 (100 / 包)

Bought these for a jig I’m building and the 45mm length was spot on; they tightened evenly without any wobble. The black oxide finish also seems like it’ll hold up well to shop use.

The black oxide finish is flawless and the threads cut cleanly every time, no binding or galling even under heavy clamping pressure. I’ve used these for jig building and precision fixtures, and the hex socket drive keeps seating perfectly without stripping. Solid fasteners that hold up like they’re

Installing these into my milling machine’s fixture plate — the threads cut cleanly and consistently, and the hex drive seated perfectly without stripping.