Washers
Washers are flat sheet metal componentsusually in a round shaped profile with a center hole punched through, to accommodate the bolt through the nut or suitable threaded part. Washers are either used to distribute the load off the bolting or reduce the vibrations of the bolted joint. High quality bolted joint requires hardened steel washers to prevent the loss of pre-load due to the brinelling after the torque is applied.
Types of Washers (Fasteners)
-
Plain Flat Washers -
Spring Lock Washers -
Tab Washers -
Internal Tab Washers -
Square Washers -
Square Beveled -
Hex Washers -
External Tooth Lock -
Internal Tooth Lock -
Curved Wave Washer -
Conical Spring -
Self Locking Washer -
Dock Washers -
Fender Washers -
Ogee Washers -
Sealing Washers -
Countersunk Washer -
Finishing Washers
Most of these fastening washers are a product of sheet metal moulding, punching in cold forming or hot formed condition. However due to unavailability of required sheet metal stock, washers can be machined from suitable bar stock.