Decotacks 5/8" Crystal Upholstery Sofa Nails, Tacks, Ornamented [200 Pcs] DXF0616#2 Head Diameter : 5/8" [16 mm] Shank Length : 5/8" [16 mm] Made by top grade materials, bright, Shiny and Beautiful Never get scratched by soft face hammers Need to use Pliers to catch nails before hammering, they are small and hammer them by free hand may be dangerous and cause shanks bending !!!