Specifies the requirements for towbars and towing brackets for use with 50 mm towballs, intended for trailers and caravans up to 3.5 t aggregate trailer mass, for use on public roads.
AS 4177.1:2004 history
1970AS 4177.1:2004/Amdt 2:2006 Caravan and light trailer towing components - Towbars and towing brackets
1970AS 4177.1:2004/Amdt 1:2006 Caravan and light trailer towing components - Towbars and towing brackets
0000 AS 4177.1:2004(R2006)
2006AS 4177.1/AMD 1:2006 Caravan and light trailer towing components Part 1: Towbars and towing brackets; Amendment No.1
1970AS 4177.1:2004 Caravan and light trailer towing components - Towbars and towing brackets
1994AS 4177.1:1994 Caravan and light trailer towing components Part 1: Towbars and towing brackets