Flat head, small head, hexagonal and half hexagonal rivet nuts, with through holes, blind holes, knurled and non knurled.

According to the shape: circular (C), hexagonal (H),

According to the inner hole: through hole (O), blind hole (B),

By material: carbon steel, stainless steel, aluminum alloy, etc,

Rivet nut head types: flat head type (f), cylindrical head type (C), countersunk head type (F).