Versatile 60-Piece Threaded Insert Kit for Wood - 10mm, 15mm, and 20mm Sizes
Adaptable to various woodworking materials: composite, softwood, plywood, and hardwood. Versatile 60-Piece Threaded Insert Kit for Wood. - 20 pieces 1/4 in. - 20 tpi x 20 mm threaded inserts. - 20 tpi x 15 mm threaded inserts.