Annular rings provide additional holding power, where increased grip is required. Bright nails are self coloured and have no plating. CE Standard WebBS EN 14592:2008. Corrosion Rating 1 - Clean, dry & low humidity environments. Finish: Bright. Head Area mm: 31.51. Head Type: Round. Length mm: 30. Material: Carbon Steel. Pack Dimensions L x W x H mm: 180 x 152 x 50. Pack Weight kg: 0.510. Point Length mm: 3.14. Product Code: BAR30MB. Service Class: 1. Shank Dia. mm: 2.36. Size mm: 30 x 2.36. Weight kg: 0.5.