... Fine quality 4)acrown:16.7mm, wire dia:1.6mm staple Nail book needle size: 10 #, unified (24/6), 26 ... above of zinc alloy as antirust, wire insideHave Fe C S P Mn Si, and a small number ... of iron, still have a kind of were of brass.Nail book needle size: 10 #, unified (24/6), 26 ... flangers to foam box spring side border, C ring nails, c staples, C nails.industrial staples nails C Ring Staple(nail)