1270028 is a circular plain washer, which is a type of fastening washer developed by Bossard, a Swiss-based engineering and manufacturing company. The washer has a 7.2mm thickness, is 14mm in external diameter, and has an internal diameter of 6mm. It is made from a Zinc-plated material, designed for use in standard fixing solutions for construction. The washer provides excellent resistance against acid, alkali, and other corrosives, and helps reduce problems associated with vibration and shock. The circular design of the washer ensures the load is evenly distributed over the attachment and the washer can be used with a variety of different screws and bolts for fixing purposes.