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Iron Plated Black Zinc Round Head With Washer Triple Set Screw Pan Head Cross Slot Flat Spring Washer Combination Screw
Iron-plated black zinc round head with washer triple set screw,
Pan head cross slot flat spring washer combination screw bolt M4-M8
Standard
GB/T 9074.11-1988
material
Plain carbon steel
use
Standard
Surface treatment
Black zinc plating
Strength class
Class 4.8
Head shape
round head