comments:
-David-Attenborough- posted on r/whatisit4d
Upholstery nail.https://www.walmart.com/ip/Uxcell-100-Pack-Upholstery-Nails-8x17-8mm-Upholstery-Tacks-Furniture-Tacks-Round-Head-Decorative-Tack-with-Barb-for-Sofas-Beds-DIY-Project-Silver/18809809876?wmlspartner=wlpa&selectedSellerId=571