Knurled FlatHead / Countersunk Head Rivnuts Threaded Riveted Nuts Blind Nutserts. ● Nuts Model: Large Countersunk Head Riveted Nuts, Small Countersunk Head Riveted Nuts, Flat Head Riveted Nuts. ● Thread Size:M3, M4, M5, M6, M8, M10, M12.
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