The FHB5147 flat panel mount hardware kit includes an assortment of M8 screws and spacers to expand compatibility for your CHIEF mount.4x M8 x 16mm Phillips pan head machine screws4x M8 x 20mm Phillips pan head machine screws4x M8 x 25mm Phillips pan head machine screws4x M8 x 30mm Phillips pan head machine screws4x M8 x 35mm Phillips pan head machine screws4x M8 x 40mm Phillips pan head machine screws4x M8 x 45mm Phillips pan head machine screws4x M8 x 50mm Phillips pan head machine screws4x Spacers