M4-0.7 X 6mm 內六角螺絲 | 低頭六角驅動 | 全螺紋 | 10.9級合金鋼熱處理黑色氧化 (400顆/包)

These little screws have been perfect for my jig setup — the black oxide finish makes them easy to handle and they thread in cleanly every time. The hex socket drive grabs well with a ball-end driver, and the 10.9 alloy steel gives me confidence they'll hold up under repeated clamping.

Ordered these for a small fixture build at the shop, and the black oxide finish held up nicely without any smearing on my fingers. The 6mm length is exactly what I needed for thin plates, and the threads cut clean into the tapped holes.

The hex socket drive grips my Allen key perfectly—no stripping or wobble even when I’m torquing them down in tight spots. The black oxide finish looks clean and the full threading bites nicely into my aluminum fixture.