M20 X 80mm 套件肩螺絲 | 套件頭 | 套件驅動 | 合金鋼 (10/包)

I needed a threaded pivot for a jig I’m building, and these M20 screws fit perfectly with that smooth ground shoulder. The hex drive made tightening them a breeze, and the socket head sits flush without any wobble.

The precision-ground shoulder on these M20 screws made them perfect for creating a smooth axle surface on my jig. They fit the bearing housing without any wobble, which is exactly what I needed for this project.

Used two of these as pivot pins on a heavy swing arm assembly and the ground shoulder rides smooth as glass in the bushings. The hex socket drive makes torquing them down effortless, even in tight spots where a wrench would never fit.