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Erko Construction Sets

Erko was a very simple aluminium construction system similar to Trix, but with two rows of holes instead of three. It was made in Hamburg, Germany by Erich Richter. Dates not known at present, but probably just post-war.

Brief details - Distance between holes 7.86 mm., Diameter of holes and shafts 3.00 and 2.95 mm. respectively. Number of different part types 16.

Manufacturer / Distributor

Erich Richter, Jahnring 20, Hamburg, Germany

Info from the Metal Constructional Systems Database for ERKO (Ref:ERK)

System Type
as TRIX (inc MCX)
Germany (see comment *1)
1950s (some significant doubt) to 1960s (some significant doubt)
Aluminium (Alloy) (probably)
Boss Type
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
Hole Pitch (Spacing) (mm)
Diameter of holes in Strips(mm)
3.0 (see comment *2)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
3.0 (see comment *3)
Types of Nuts and Bolts
Material/Finish of Nuts and Bolts
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

Main parts: 8 Angle Girders with 2 rows of staggered holes at ends of each & in centre of 2 longest. Also small Perforated Plate with staggered holes. *1 Just possibly the DDR. *2 2.95.

Pages from the 'Other Systems Newsletter' which contain information on this system are shown below. They can also be downloaded to your computer if desired here

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Below there are manuals/leaflets which can be downloaded by clicking on the appropriate image.

An Erko instruction leaflet.
(Added 15/06/2020)

A photos of Erko parts.
(Added 15/06/2020)