You are looking at one brand new 1 lb pack package of Osborne Size #12 3/4" Long Solid Copper Rivets and Burrs. This item 1700-12 are heavy duty, rust proof permanent fasteners. They are easily set with Osborne # 169-6 copper rivet and bur setter, which is available in our stecksstore along with several other types and sizes of rivets, tools and screws. If you are interested in additional quantities or other items, please feel free to contact us. Please feel free to message with any questions. Thank you for looking. Instructions: Push the rivet through the hole then turns the material over. Place the burr or washer on the rivet, then use the rivet setter’s straight hole to drive the burr down against the material. Cut the rivet off close to the burr with side or end nippers. Do not cut off flush with the burr, but leave about 1/16 of an inch above the burr. The hole on the side of the rivet setter can be used to dislodge any waste that is weiged into the tool. Place the concave recess of the setter on the burr. Hold perpendicular and strike the end of the setter forcefully, turning to the left then right as you strike. This spreads the end of the rivet over the burr simultaneously rounding its end. A few extra blows from a soft faced mallet can be used to flatten the rivet end a bit, if desired. Dimensions: May vary Slightly Length 3/4" (1.9 cm) Cap Diameter 3/8" (9.5 mm) Post Diameter 1/8" (3.2 mm)