E-Z LOK 270-4-BR Threaded Insert for Soft Wood or Plastic - Double fin - 1/4-20 Pack of 25

E-Z Fin Threaded Insert for Soft Wood or Plastic - Double fin - 1/4-20E-Z Fin (Finserts) provide strong, metal threads in soft woods, like pine, composition board, and MDF, and most plastics. Firm, permanent fastening is achieved by distributing stress over a greater surface area, minimizing the possibility of splintering, splitting, and thread erosion.Machined out of brass, E-Z Fin (Finserts) are available in single, double or triple fin designs for varying material thicknesses. Internal threads sizes range from #6 to 5/16.Important Note: Hole size requirements may vary depending on a number of factors, including material and tools. We recommend that you test your particular application before ordering. We gladly supply free samples.