Marson MPN Series "O" Style Round Body Rivetnut Insert, Unit of Measure: Inch, 0.374 Inch Decimal Equivalent, Thread Size: 1/4-20 UNC-2B, 0.030 Inch (0.76mm) Minimum Grip, 0.165 Inch (4.19mm) Maximum Grip, 0.030 - 0.165 Inch (0.76 - 4.19mm) Grip Range, 0.415 Inch (10.54mm) Head Diameter, 0.020 Inch (0.51mm) Head Height, Low Profile Head, 0.375 Inch (9.53mm) Minimum Hole Size, 0.379 Inch (9.63mm) Maximum Hole Size, 3/8 Inch Drill Size, Body End: Open End, 0.591 Inch (15.01mm) Body Length, Set Body Length: 0.440 Inch (11.18mm), Installed Thread Depth: N/A, Aluminum Body Material, Material Detail: Aluminum 5056, Plain Body Finish, Finish Detail: Plain, RoHS Compliant Yes