Countersunk screws design: m2 m2.5 m3 bolts set adopts countersunk bolts/flat head screws structure, which is flush with the workpiece surface after installation to avoid interference from bulges. The m2 m2.5 m3 countersunk screws set adopts a countersunk bolts/flat head screws structure, which is flush with the workpiece surface after installation to avoid interference from bulges.
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