D.H.S. 5mm Divided Cabinet Shelf Support Pegs - Polished Nickel - Package of 25 Split collar design makes for an unobtrusive look, while being easy to install Fits all 5mm holes. Each end is 5/16" long, lending plenty of "bite in the cabinet as well as the shelf. Raised mid-collar gets captured by the shelf, keeping it in position. Made of galvanized zinc. A great choice for high moisture applications. The only 5mm split-collar shelf support on Amazon that comes in a handy, easily resealable box! - 25 pieces