Springfield Leather Company's Button Studs (12 Pack, Antique Brass Plate) Dimensions: 3/8" tall; 7/16" base diameter; 1/4" stud head diameter Includes screw and stud for each Available in 3 finishes: Antique Brass, Nickel, Solid Brass Use on bags, bracelets, and anything else that needs a removable fastener! Also available in short button studs!!!