- High quality precision finish in a special lead free alloy, conical shaped. - Thread made similar to that of a modern self-tapping screw. - Gold plated screw posts electrolytically plated with a thick layer of 24 K gold. - Assorted box with 6 screw posts of each size (Total:120 screw posts), 1 hollow key, 1 cross key. **For further product information, please contact Chat Support**