You are here:AllProfile Racing BMXCranksSmall PartsGDH Flushmount Bolt and Washer Set GDH Flushmount Bolt and Washer Set RRP £19.99 Material[Select]Chromo Titanium +£22.92 The Gun Drilled Hollow M12 x 1.25 version for our GDH spindle crank sets. These will require a 6mm allen key. Technical information Brand: Profile Racing Material: Chromo, Titanium