M10-1.5 X 16mm 凹頭螺絲 | 平頭六角 | 全螺紋 | 12.9級合金鋼熱黑色氧化物 (200/包)

I needed a specific length for a jig I was building, and these 16mm socket caps fit perfectly. The hex drive lets me torque them down without stripping the head.

The black oxide finish on these screws gives them a clean, uniform look, and they cut threads smoothly without binding. I’ve already used them to secure a couple of jigs in my shop, and the 12.9 alloy steel feels solid enough for the load.

The hex socket drive seated the allen key perfectly every time, and the 12.9 alloy steel feels rock solid under torque. I’ve used maybe forty of them on my jig setup so far without a single stripped head or cross-thread, which is more than I can say for other packs I’ve tried. These are a solid buy