Our standard gauge tracks are provided with a double hole at all profile ends. These rail connectors fit to this.
The small package contains 8 brass brackets, 16 stainless steel bolts and nuts each, the large package 100 brackets and 200 bolts and nuts each.
With this you can produce exemplary rail joints.

The brackets are 36 x 4 mm in size.

You can also provide your existing rails with two holes each and then use these connectors.