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 Included SKU's:TNS1/4-20 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.