Clamping Lever Bosch Rotak 450 460 470 490 Lawnmower Quick Release Lever Genuine. Genuine part No:F016105363. 

Replacement Clamping Lever Without Nut. 

Compatible Model(s): Rotak 450|Rotak 460|Rotak 470|Rotak 490

Compatible Brand(s): Qualcast Bosch

Manufacturers names and numbers are used for reference purposes only