• Materia: Carbo chalybs, chalybs immaculata, aes.
• Capitis genus: plana / countersunk, sartagine, Duplex Flat, laganum caput, CSK cum 4(6) costis
• Perfice: patella cadmiae, oxydatus niger, Nickel, Rupertus, Dacromet, et sic porro
• lStandard: DIN7505
• Size: M3-M8