A2 stainless steel cup washer in A2 grade (AISI 304) stainless steel. Available in 2 sizes, from 7/8 gauge (4.2mm) to 9/10 gauge (5.0mm). By far the most extensive part of the Marine Pre-Packs range. Part of the Holt Marine Pre-Packs stainless steel fastenings range, supplied as a blister pack.
