QB-BASE175-Q Mounting platform that is inserted in Quick-Build mounting pegs 1.75 x 1.75 (44.45mm x 44.45mm), Allows elastic retainers, wire end holders, corner postes, bundle retainers and other harness board accessories to create a complete Quick-Buildâ„¢ harness system. Compatible with #4, #6, #8, and 1/4 screws.