Self-clinching studs according to drawing attached 1/4 UNC X ½ complete with hexagon nut DIN 4034 (ex DIN 555) Both zinc plated 10 000 Pcs per delivery (6 deliveries/year = 60 000 Pcs.) Carriage bolts similar to Din 603 5/16¨ UNC x 2-1/2 complete with hexagon nut Both zinc plated 10 000 Pcs per delivery (6 deliveries/year = 60 000 Pcs.)