Knife Making Supply HardwareFor your knife making projects a set of 12 solid brass corby rivets and 4 Lanyard brass tubes. Measurements: Nut diameter: 8mm(3/16") brass. Overall length: 1" Lanyard diameter: 8mm(3/16") brass. Lanyard length: 1.5" Thread diameter: 4mm Quantity: In a pouch, you will receive 12 corby rivets and 4 lanyard tubes. All solid brass material.Your 100% satisfaction is guaranteed.Shipping: Delivered by USPS. We accept PayPal and all major credit cards.