No.6
Thread diameter: 3.5mm
Head diameter: 8mm
Head height: 2.1mm.
No.8
Thread diameter: 4.2mm
Head diameter: 9.8mm
Head height: 2.3mm.
No.10
Thread diameter: 4.8mm
Head diameter: 11.2mm
Head height: 3mm.
No.12
Thread diameter: 5.5mm
Head diameter: 12.8mm
Head height: 3.2mm.