M3 M4 M5 M6 Black Button Round Head Allen Self Tapping Screws 8.8 High Tensile

• Material：8.8 High Tensile. Screw SizeM3 M4 M5 M6. • Category: Self-tapping screws. • Type: Hexagon socket with round head. TypeSocket Screws. •Head type: Hexagonal. column connections, solid web connections, heavy crane beam connections in industrial plants.

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