You can find all the spare parts and components for your bike at Escapa.
The Suntour 15QLC32 Boost 15x110mm Thru-Axle is specifically designed for use with SR Suntour 15x110mm forks
The Suntour 15QLC32 BOOST 15x110mm Thru-Axle is specifically designed for use with SR Suntour 15x110mm forks