There are various sizes, M3, M4, M5, M6, M8 and they normally have low compared to other nuts. Nut Thread Size: M3,M4, M5, M6, M8. 10pcs x M8 Rivet Nuts. 5pcs x Mandrels (M3, M4, M5, M6, M8). With open end, small flange, round hole, threaded inner wall and partial anti-skid surface, these flat head rivet nut has a.
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