These washers are very similar to spring washers and lock fasteners into place to add an extra level of security. They're typically attached to 

Spring Washers, Serrated Washers & Flat Washers ; Felt Washer, White ID ø6mm, OD ø12mm, 2mm Thickness ; Flat Washer, DIN 9021, A2, 1mm, ID 4,3mm, OD 12mm.

Flat washers are used to increase the surface area in order to more evenly distribute the force applied with tightening the fastener. Lock washers are used as a 

Lock washers are designed to be tightened to a required torque beneath an ordinary fastener. They exert a spring tension that keeps the fastener from vibrating 

Flat and Lock Washers, 250 Piece A great assortment of lock washers $549 Add to Cart + Add to My List Product Overview This set of lock washers and flat washers offers a wide variety of sizes to fit for all kinds of projects. The washers come organized and stored in a clear, divided PVC case for quality storage and organization.

American Fastener offers Industrial Lock Washers, Flat Washers, Finishing Washers, USS Washers, Tooth Washers and more. Contact us today for a free quote.

You may be right in terms of corrosion, but adding a flat washer is wrong and will defeat the action of the lock washer. Without the flat washer, the lock washer digs into the fastener and the part being fastened. This is how the lock washer "locks".

Ideally the lock washer goes into the threaded fastener first followed by the flat washer. This way the lock washer adds tension to the fastener assembly. It 

Washers are a thin ring of material with a hole in the centre. They are an essential part of any fastener assembly and are used in conjunction with screws, nuts 

American Fastener offers Industrial Lock Washers, Flat Washers, Finishing Washers, USS Washers, Tooth Washers and more. Contact us today for a free quote.

American Fastener offers Industrial Lock Washers, Flat Washers, Finishing Washers, USS Washers, Tooth Washers and more. Contact us today for a free quote.