Steel nut hardness levels can be measured on the Rockwe […]
Steel nut hardness levels can be measured on the Rockwell scale of hardness. Consumers have access to steel nuts that offer different hardness levels and proof loads. Proof load refers to the greatest load a material can bear before the material begins to deform. The type of steel used in the construction of steel nuts affects the overall performance of the steel nut. Every different types of steel nut is used to afford different performance values.
Steel nuts can be constructed out of different varieties of steel. Grades O, A, B and 1 are all constructed out of carbon steel. Medium carbon steels are employed in the construction of grades 2, 2H and 2HM steel nuts. Grades C3 and DH3 steel nuts are made out of corrosion-resistant steel. Grades 4, 7 and 7M steel nuts consist of Carbon steel alloys.
In fact, the nuts and bolts used for steel building construction are quite often made from the same element resistant material that the building walls are made of. They will not only not rust or give in to the elements, but they'll easily outlast a wooden building which requires treatments periodically over time to prevent rotting. They are also much less susceptible to accidental damage caused by unforeseen incidents.
Dirty nuts should be soaked and cleaned clearly.
Fill a small plastic container with undiluted white vinegar. Add the nuts to the container and allow them to soak for 30 minutes to one hour. If the stains are still present after this time, allow the nuts to soak for an additional few hours. This will remove rust and/or mineral deposits.
Fill a small plastic container with a cola-flavored soft drink. Then put the nuts into the container and make them to soak for a night. The acidic nature of the soft drink will remove stains, rust and mineral deposits from the nuts.
Remove grease from nuts by placing them into a shallow dish and spraying them liberally with a commercial degreaser. Allow them to sit for up to an hour and then fill the dish with water. Let the nuts sit in the clean water for several minutes to rinse, and then dry thoroughly with clean towels.
For very tough grease stains, place the nuts in a shallow pan and spray with a commercial spray-on brake cleaner, found at your local hardware or hex nuts store. Put on a pair of rubber gloves and scrub the nuts with a brass brush. Submerge the cleaned parts in a pan of water to rinse, and then dry with clean towels.