10pcs M4 M5 M6 M8 M10 Thickened Steel Four Claws Speaker Nut Blind Pronged Insert T-Nut for Wood Furniture Length=8-17mm
https://www.vogueparade.com/shopping/EN/42/1/1005003525814645/10pcs-m4-m5-m6-m8-m10-thickened-steel-four-claws-speaker-nut-blind-pronged-insert-t-nut-for-wood-furniture-length8-17mm//