SIZE- The Head Diameter of these pop rivets : 1/4”(6.4mm) | Flange Diameter: 1/2 (12.7mm) | Grip Length: 1/2 (12.7mm) Premium Aluminum Rivets- Our small pop rivets are made of high-quality aluminum caps and steel core, excellent performance in any environment due to acid and corrosion resistance Easy to Use- The white pop rivets 1/4 are well-matched with rivet guns, robust, smooth surface and easy to install. Perfectly long-lasting and deformation-free for fastening a wide range of sheet metal and pipes Wide Application- The blind rivets are suitable for both indoor and outdoor use, such as DIY home uses, business, automotive, aviation, ductwork, elevators, instruments, furniture, etc. Best After-Sale Service - You will get 200pcs WORKPRO rivets in a flip-top storage box, easy to access and storage. Please contact us if you have any problems with our product Item Weight 2.53 pounds Manufacturer ‎HANGZHOU GREATSTAR INDUSTRIAL CO.,LTD Package Dimensions 10.31 x 5.87 x 2.01 inches