Overview
NAS391B8P finishing countersunk washer can be used with a bolt or fastener. Similar to flat washers, these washers include a countersunk design that enables them to lay flush when installed. This type of washer will conceal the head of the bolt or threaded fastener. NAS391B8P are manufactured to precise standards from copper plated with chromium/nickel to offer strong resistance to corrosion. This finishing countersunk washer offers a bearing surface for the bolt fastener with which they are used. They are also used to distribute the load of a bolt or fastener.
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