Check the listing for details. 20Set 4mm Leather Rivets Ball Head Stud Screw Back Round Head Button Bronze. Condition: New. Listed at 12.78 USD. Button studs rivets are used to firmly fix and decorate leather crafts, making them durable and adding beauty. Widely suitable for backpacks, handbags, belts, wallets, shoes, clothes, scrapbooks, as well as other DIY accessories.SpecificationsColor: BronzeMaterial: Zinc AlloyHead Button Size: 4 x 7 mm / 0.16 x 0.28 inch (Dia*L)Thread Size: 2.8 x 5 mm / 0.11 x 0.2 inch (Dia*L)Screw Size: 8 x 5.5 mm / 0.31 x 0.22 inch (Dia*L)Packing List: 20 Pcs x Ball Head Stud Rivets, 20 Pcs x Phillips ScrewAdvantageBall head stud is made of solid zinc alloy, with high hardness, wear resistance and corrosion resistance.The polishing treatment of rivet studs adds a fashionable and professional texture to leather products, and the screw-back rivet design ensures tight and firm installation.Instruction1.