25 Aluminum POP 8-12 1/4 '' dia x 3/4 '' Max Grip *** A WORD ABOUT GRIP LENGTH *** ALL rivets are sized by DIAMETER x MAX GRIP. If the rivet title 1/8 '' x 1/4 '' OR 1/8 '' x 1/4 '' GRIP -LRB- or MAX GRIP -RRB- then the rivet body has a diameter of 1/8 '', and the GRIP of the rivet is for tangible thickness UP TO 1/4 '' The existent RIVET LENGTH WILL BE LONGER THAN THE STATED MAX GRIP TO ALLOW FOR `` color-blind SIDE '' DEFORMATION TO SET THE RIVET. AGAIN, rivets will ALWAYS be than the GRIP stated.