Documentation: washers have hex drive

[strayr]

Page 7 of manual uses the definition of BHCS for a washer.

WASHER Metric fastener with a domed shape head and hex drive. Most commonly found in locations where M5 fasteners are used.

Should be something like:

These are nearly flat stamped steel toroids...

are these even used amymore? It looks like the washer magnet gate stuff is gone?