M10-1.5 X 18mm 套頭螺絲 | 平頭六角驅動 | 全螺紋 | 12.9級合金鋼熱黑氧化物 (200個/包)

Had to replace some bolts on a heavy jig I'm repairing, and these cleaned up the thread engagement perfectly. The hex socket fits my wrench snugly with no wobble, and the 12.9 alloy steel feels rock solid under load.

The black oxide finish on these socket cap screws looks and feels durable, and the hex drive seated perfectly in my jig assembly. I was impressed by the consistent threading and how tightly each one held.

Had to swap out some worn bolts on my milling fixture, and these 12.9 alloy steel screws fit perfectly and torqued down without any stripping issues. The black oxide coating looks consistent across all 200 pieces, which is exactly what I need for jig work.