M16 x 35mm 平端內六角止付螺絲 | 合金鋼 (25顆/包)

The hex socket drive bit into the screw cleanly, and the flat point seated perfectly into my shaft keyway without any wobble. For the price, the alloy steel threads feel substantial and machined well.

I was a bit worried about getting the torque right in a cramped spot, but the hex socket drive on these grabbed perfectly. The flat point seated firmly without walking off the mark, and the alloy steel feels solid in hand. These will definitely hold up in my jig setup.

The hex socket drive made torquing these into a tight spot surprisingly easy, and the alloy steel feels solid enough for my heavy-duty setup. Exactly what I needed for a precision adjustment.