This set consists of many common box washers and that also includes locking and special applications washers with a variety of different materials. All models are Very High Quality hardware items that are designed to fit together with other Xacta hardware items in the full sets. In Most Cases, each hardware model is coordinated so that they import into your scenes in perfect relative size and coordinate locations. You can Search for xacta to see other model sets of this type and Quality. This Asset is an extensive library of the most commonly used types of washers used in industry and manufacturing.