Luosi Metal >> News >> Hexagon socket countersunk head screws

Hexagon socket countersunk head screws

                 Sink hexangular bolt inside the head, the material is the SCM435 metal alloy steel and the specification all have to have stock on hand from the M2-M20. 2. Hexangular sink inside the English system metal alloy steel a bolt, the surface hair black processing, general used for various tool machine and enclosure up.

 


 

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