Punto d'origine
Tianjin, China
Stile testa
Vaschetta, Truss, Piatto, Ovale, Rotondo, Legare
Numero del Modello
M2, M4, M6, M8, M10, M12
Gauge
M2, M4, M6, M8, M10, M12
Finish
Zinc plated, black oxide, black phosphating
DRIVERS
PHILLIPS or PHILLIPS/SQUARE COMB
Head type
countersunk head screw
Grade
class 4.8, 8.8, 10.9, 12.9