screws are a nice money maker all of the normal ones from a little of everything I sell for $1lb and screws from towers, laptops, and drives range from $4-7lb and hard drive screws I do at $10lb $7.50 if larger orders and even with ebay fees its a crap load more than steel prices and I do it as I go so I do not have to sort things later. laptops are the only thing I sort really well but its easy with the plastic bins I got for free curb shopping there are 50 trays in the one I have and when one fills up I weigh it and put it in a baggy until theres a pound. which adds up faster on older models like dells.