@futurebird Nuts and bolts, pins and screw, nails… pretty much all fasteners. I was a millwright and familiar with all. What really disappoints me was/ is that it was these branches of industry that first discovered and have used the business of monopoly to sell their products individually rather than by bulk. By placing fasteners in plastic sealed boxes they have puluted our air, seas, and landfills with their greed to make excessive profits.
Disgusting waste produced purposely.