4 Vintage Style Solid Brass Barrister Bookcase Knobs 5/8" dia. #K2 Solid Brass Stacking Barrister Bookcase 5/8" Knobs knobs have woodscrews on end for easy attachment,Excellent Replacement for Barrister Style Bookcases and Filing Cabinets filecabinets,small drawers,woodworking,machinist chest USA quality seller Bookcases ,Macey,Globe Wernicke and more