M5 X 20mm 杯形點圓柱頭螺栓 | 合金鋼鍍鋅 (500 / 包)

Installing these in a tight gearbox was a breeze thanks to the cup point tip locking down securely. The zinc plating also seems solid, no rust after a few months in a slightly damp shop.

The hex socket drive makes these incredibly easy to torque down in awkward spots, and the zinc plating looks clean and uniform across the whole batch. Every single one of the 500 arrived without any bent threads or rough edges, which saved me a ton of sorting time on a big assembly job.

The hex socket drive made it easy to tighten these screws in a tight corner on my jig. They feel solid and the cup point held well without stripping during installation. W orked perfectly for the price.