Torsion Spring Solid Steel Shaft 1'' with Keyway 1/4'' for industrial door  

Processing method: Cold drawn metal shaft, not machining

Keyway: with full length without further machining

Application: Residential / Industrial

Surface Treatment: Galvanized with ROHS

Torsion spring solid steel shaft with keyway can be specially produced according to your design with different OD and keyway size. Please confirm the details in advance.