Logitech G29 / G920 / G923 Mount Screws x2 Screws are 20mm total and the thread is 15mm. These screws are for attaching your wheelbase / pedals / shifter to a plate/mount option for a secure fit. Stainless Steel for durability. Please contact us for a smaller/different bolt or any advice. We also stock Socket Caps screws for this wheelbase in Black and Silver /AHGaming |