Specification Brand : HARFINGTON BulletPoint1 : Size - Ring Size: 15.5x10mm/0.61"x0.39"(OD*ID), Thread Size: 6.6x3x5.5mm/0.26"x0.12"x0.22"(OD*ID*T), Nail Size: 7.5x8.2mm/0.3"x0.32"(ID*H), Total Length: 22mm/0.87", Punch Size: 3.5x97mm/0.14"x3.8"(D*L) BulletPoint2 : Material - The rivet ring is made of metal and has an electroplated surface that is not easy to rust, and the punch is made of carbon steel, has high hardness, is strong and durable. BulletPoint3 : Usage - Equipped with leather punch for easy installation. Pre-drill the holes with a leather hole punch, then tighten the screws on the base so they are secure and won't fall off. BulletPoint4 : Application - Can be used on wristbands, hats, jeans, belts, shoes, jackets, clothes, pet collars and more, suitable for leathercraft DIY projects such as decoration and repairs. BulletPoint5 : Note - Please use appropriate tools to install and tighten rivets, which ensures correct application of force and avoids damage to rivets or connections. Color : Dim Gray GpsrSafetyAttestation : 1 ItemName : HARFINGTON 6pcs Metal Studs Rivets 6.6mm D-Ring Button Rivets with 3.5mm Leather Hole Punch for Leather Craft, Dim Gray ItemPackageDimensions_Height : 10.8 centimeters ItemPackageDimensions_Length : 1.3 centimeters ItemPackageDimensions_Width : 6.8 centimeters ItemPackageQuantity : 100 ItemTypeKeyword : leathercraft-rivets Manufacturer : HARFINGTON Material : Brass ModelName : Srliyapkyovhfdmu-13 ModelNumber : hta240313hh000364 NumberOfItems : 100 PartNumber : hta240313hh000364 ProductDescription : The rivet ring is made of metal and has an electroplated surface that is not easy to rust, and the punch is made of carbon steel, has high hardness, is strong and durable. Equipped with leather punch for easy installation. Pre-drill the holes with a leather hole punch, then tighten the screws on the base so they are secure and won't fall off. Can be used on wristbands, hats, jeans, belts, shoes, jackets, clothes, pet collars and more, suitable for leathercraft DIY projects such as decoration and repairs.