M20-2.5 X 65mm 六角頭螺絲 | 10.9 級鋼鍍鋅 | 全螺紋 (90 個/包)

The hex heads gave my socket a solid grip, and being fully threaded let me adjust the depth perfectly on a jig I'm building. Really pleased with how sturdy these feel for the price.

Bought these for some heavy equipment frames and the 10.9 grade is exactly what we needed — the zinc plating held up during a wet week with zero rust. Fully threaded all the way, so they grabbed nicely in a tapped hole, and the hex heads were crisp enough for a socket without slipping.

The zinc plating on these M20 screws feels solid and uniform, so they should hold up well in our machine shop. I used a 30mm socket to drive them into a heavy press frame, and the hex head gripped perfectly with no stripping. Exactly what I needed for equipment assembly at this grade.