"This snap rivet set by Delock can be used to fasten a heat sink on a PCB.
Specification Snap Rivet for heat sinkMaterial: plasticFire-resistance rating: 94V-0.
94V-2Colour: blackDimensions: Length: 15.2 mmØ top 6.3 mmØ bottom 4.2 mmSystem requirements Mounting hole on PCB: Ø 3.0 mmPackage content 10 x Snap RivetPackage Poly bag"