- 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 kit of 60 pcs contains: - 3 screw posts for each size. - 1 hollow key. - 1 cross key. **For further product information, please contact Chat Support**