Details + Specs This configuration is not available. Make another selection. 1/4-20" Plain Steel Nut Sert American Steel Nut-Sert Insert Steel Poly-Nut. 3/8" Hole Size Grip range: .030" to .165"Open End Rivet Insert Nut Technical Drawing This configuration is not available. Make another selection. 3D Models This configuration is not available. Make another selection. Downloadable Resources This configuration is not available. Make another selection.