Product Specification: POP Rivets Blind Open End Rivet Diameter: 1/4" (.25) Body Dia: Max 0.255 - Min 0.246 Mandrel Dia Nom: 0.151 Flange Dia Nom: 0.50 Head Height Max: 0.80 Shear lbs: 1,700 Tensile lbs: 2,100 Hole Size: 0.257 - 0.261 Bit Size: F Marterial: All 304 Stainless Steel USA Made Product IFI Grade 50