M8-1.25 x 65mm 內六角螺絲 | 圓頭六角驅動 | 全螺紋 | 12.9 級合金鋼 熱處理黑色氧化 (100 顆/包)

Finally, a fully threaded M8 that’s actually long enough for my thicker jig plates. The hex socket drive grabs perfectly, and the 12.9 alloy steel feels rock solid under torque.

I've been using these in some jig builds and the 12.9 alloy steel handles torque way better than standard hardware. The black oxide coating also seems to hold up well in my tooling setup.

These button head screws fit perfectly into my jig fixtures. The hex socket drive gripped nicely without any stripping, and the black oxide finish seems durable.