Lugar del origen
Tianjin, China
Estilo de la cabeza
Sartén, Truss, Plana, Oval, Ronda, El atar
Número de Modelo
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