M4-0.7 x 45mm 內六角螺絲 | 六角驅動 | 半牙 | 12.9級合金鋼鍍鋅 (400入/包)

The threading stops at just the right point, so these seat flush in my fixture plates without bottoming out. Zinc finish is even across all 400 pieces, no flaking or rough edges right out of the bag.

These hex socket screws worked perfectly for securing a fixture plate on my bench; the Class 12.9 alloy steel feels incredibly tough. The 45mm length gave me just the right amount of bite into the threaded holes, and the zinc plating came clean without any burrs. Exactly what my precision assembly n

I needed some strong screws for a jig I was building, and these fit the bill perfectly. The hex socket drive made installation a breeze with my Allen key, and the zinc plating gives them a nice, clean look.