Multi-Grip Rivet-Nut, M8 Pre-Bulbed Shank Carbon S... – Grandado Material: Slotted rivet nut is made of high quality carbon steel, which is strong and durable. The split rivet nut surface is treated to resist corrosion. Size:Thread Size: M8 x 1., 25mm, Fit Mounting Hole Diameter: 0., 43 Inch / 11mm, Head Diameter: 0., 75 Inch / 19mm, Overall Length: 1., 22 Inch / 31mm. DIY Rivet Nut Installation M8 Multi-grip Nuts M8 Multi-Grip Rivet Nuts (12pcs) – Pre-Bulbed Flat Head Threaded Inserts For Sheet Metal, Wood, Plastic Toilet Seat Screws Sheet Metal Nut Material: Carbon Steel; Thread Size: M8 x 1.25mm; Drill hole size: 11mm / 0.43; Fastener Type: Hollow; Mechanical internal thread, materials, uniform wall... The simple installation process and mechanical internal thread design make them easy to use, providing a reliable and user-friendly solution for both industrial and DIY projects. Widely used in sheet metal, household thin iron cabinet, roof, equipment casing, etc. M10 Pre-bulbed Threaded Insert Nuts For Sheet Metal And DIY Tool Their robust construction makes them a practical choice for secure riveting on various sheets, including thin iron cabinets, roofs, and equipment casings.