Each staple fastens up to 70 sheets Crown is 7/16in., and leg length is 5/16in.. Cartridge is easy to snap in. For use with Max USA Flat Clinch Electronic cartridge stapler EH-70F. Max Staplers & Staples part of a large selection of office supplies. MAX Flat Clinch Staple Cartridges, EH70F, 5/16in. is one of many Staples available through Office Depot. Made by Max.