Structure of the article number
Fasteners
Example:
A300, A301, A303 etc.
0 = Screw-on plate
1 = Bolt-hole
2 = Pin
3 = KO-Pin 11 mm
4 = Stay fastening
5 = Threaded pin
Housing type with plate
A300 Swivel castor
A310 Fixed castor
A320 Swivel castor with lock
A330 Swivel castor with directional lock
A340 Swivel castor with central lock