"What can you say about these? Well they're stainless steel and very handy for all sorts of jobs! I needed them for packing up some gate hinges. M16 washers not that easy to find so great that Screwfix have them in stock."
"I wouldn't be without these inexpensive, durable and useful packs of 100 stainless steel washers.
For holding down tarpaulins and felt outside, I use stainless Turbo Ultra countersunk wood screws with washers under the head. This copes with even strong wind and prevents the covers tearing. It is much more convenient than nailing battens down because it's so easy to unscrew and reuse everything.
They may not look much - but certainly get the job done."