Washer (hardware)
Videos
A washer is a thin plate with a hole that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring, wear pad, preload indicating device
Assorted washers: flat, split, star and insulating
A plain washer and a spring washer are placed on a bolt between the nut (on the threaded end) and the bolt head.
Plain washer 1
Belleville washer
Gasket
Videos
A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. It is a deformable materi
Washer (hardware)
…used to reduce wear and friction, either by hardening the surface or by providing a solid lubricant (i.e. a self-lubricating surface). Rubber or fiber gaskets used in taps (or faucets, valves, and other piping connections) as seal against water leaks are sometimes referred to colloquially as washers; but…
Some seals and gaskets 1. o-ring 2. fiber washer 3. paper gasket 4. cylinder head gasket
Polytetrafluoroethylene (PTFE) gasket
Compressed fiber gasket
Gasket containing white asbestos, dismantled during a redevelopment project in Germany. Parts containing asbestos must be dismantled and disposed of with care, in this case following the BAuA TRGS 519 technical guide for handling asbestos during demolition, reconstruction or maintenance work