Specifications

Commercial garage door 5500mm*1" hollow steel shaft with 1/4" key
1 Factory direct selling
2 Cold drawn seamless steel shaft

Commercial garage door 5500mm*1" hollow steel shaft with 1/4" keyway

 

1, Application  

Designed for commercial and residential door as hollow shaft with keyway

2,Specifications

OD	Length	Remarks		Surface	Keyway	Wall Thickness
1"	5500mm	Hollow		white zinc and passivated blue	with 1/4'' keyway	2/3 mm

 Processing method: Cold drawn, without further machining

Keyway: with full length without further machining

 

Application: Residential / Industrial

 

Surface Treatment: Galvanized with ROHS

3,Package information

 1) carton and pallet 2) Also can be designed as your requirements

 

 

The hollow shaft with/without keyway and solide shaft with keyway can be specialliy produced according to your design with different wall thickness.