Screws are basically designed fastners with external threaded heads and they help to resist the problem of loosing.Because they can  make the bonding more stronger and can hold things tightly.So this will be a long term solution.These is specially designed for diffrerent purposes like using in wood,metal,concrete etc.Also if  there is any mistakes in the construction you can easily remove it with the help of the screws.Customized nuts and screws will improve the perfomance of the machies.Also they dont want any special heat treatment during the making process.Customized nuts are very strong and resistant corrosion.So it can be used for any purposes withoutr any confusion.Without any extra effort using this nuts we can assemble nad reassemble the parts very easily.Because of thier strenght they acn hold larger machines without any extra fittings.