Cross recessed combination screw

Update:05-03-2021
Summary:

Combination screws are mostly used for the connection b […]

Combination screws are mostly used for the connection between thin metal plates. When connecting, first make a threaded bottom hole for the connected part, and then screw the combination screw into the threaded bottom hole of the connected part. Because of the combination screw The threaded surface has high hardness, and internal threads can be tapped in the threaded bottom hole of the connected part to form a connection.
The purpose of cross recessed screws, hexagonal head bolts, and self-tapping screws is the same as the corresponding cross recessed screws, hexagonal head bolts and self-tapping screws. The main feature of these combination screws is that they are equipped with corresponding washers. It is very convenient to use.

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