With open end and small flange, this flat head rivet nut provides reliable fastening performance. The rivet nut features a built-in design, such as a slot, to assist in securing the fastener. It is commonly selected for its low profile compared to other nuts. This blind rivet nut is designed to fit between the individual nutsert and the nose of the installation tool. Features: 1. Made from 304 stainless steel for strength and durability, offering a rust-resistant construction. 2. Features an open end, small flange, round hole, threaded inner wall, and partial anti-skid surface for effective fastener performance. 3. Available in multiple sizes: M3, M4, M5, M6, and M8, offering flexibility in application. 4. Includes a built-in feature such as a slot to aid in tightening the fastener. 5. Functions as an adapter between the nutsert and the installation tool nose. It is not the installation tool itself. Specifications: Material: 304 Stainless Steel Color: Silver Size: M3, M4, M5, M6, M8 (optional) Type: Flat Head Rivet Nuts Quantity: 20 pcs Package Weight: 20–120 g Package Included: 20 x Blind Rivet Nuts