Blind Rivet Supply's Open End Blind Rivet, Unit of Measure: Inch, 1/4 Inch Diameter, 0.250 Inch Decimal Equivalent, 0.126 Inch (3.20mm) Minimum Grip, 0.250 Inch (6.35mm) Maximum Grip, 0.126 - 0.250 Inch (3.20 - 6.35mm) Grip Range, Button Head, Steel Body Material, Material Detail: Steel, Zinc Clear Trivalent Body Finish, Finish Detail: Zinc Clear Trivalent, Steel Mandrel Material, Zinc Clear Trivalent Mandrel Finish, 0.257 Inch (6.53mm) Minimum Hole Size, 0.261 Inch (6.63mm) Maximum Hole Size, F Drill Size, 0.500 Inch (12.70mm) Head Diameter, 0.080 Inch (2.03mm) Head Height, 0.500 Inch (12.70mm) Body Length, 0.250 Inch (6.35mm) Mandrel Diameter, 1270 lbf. (5.65kN) Shear Strength, 1550 lbf. (6.89kN) Tensile Strength, RoHS Compliant Yes