I have a simular bin - My buddy has a fastener company in Mpls. He set me up - providing heavy plastic bags that his company ships fastens in. I leave my fasterns in the bags, bags are marked with size. ¼ - ¾ in. I place all the nuts, washers and lock washers in the first compartment. Then the bolts in the next compartment heading across the bin. I have 2 sizes of bolts in each pigion hole - saves space. It is nice to grab the bag of fasteners and take it to the workbench. Keeps them seperate and easy to reload. Bags have 25 pieces each. Works out nice for me . . . .