What is the function of the washers?
washer, machine component that is used in conjunction with a screw fastener such as a bolt and nut and that usually serves either to keep the screw from loosening or to distribute the load from the nut or bolt head over a larger area. For load distribution, thin flat rings of soft steel are usual.
What are penny washers used for?
Mudguard Washers, or Penny Washers as they are sometimes referred, have a wide outside diameter compared to their inside diameter. They provide a large coverage area for distributing the load and preventing pulling onto soft material.
What grade are hardened washers?
grade 8
USS hardened washers are typically used in grade 8 applications and provide a large bearing area under the head of the bolt and a smooth hard surface for the nut to be tightened down onto.
What is the difference between SAE and USS washers?
SAE Flat Washers are developed to be a smaller, thinner alternative to the standard USS Flat Washers. SAE Flat Washers feature a smaller outside diameter when compared with USS Washers. When referring to bolts, SAE Washers or Type A Flat Washers are fine threads while USS Washers are coarse threads.
When should washers be used?
Threaded fasteners do a more reliable job when accompanied by washers. Most notably, washers protect the surface from damage during installation. They distribute the pressure and prevent the fastener from moving or corroding. Skipping on washers can dramatically reduce the lifespan of how your product is put together.
Why are washers called?
These are commonly used to spread the load on thin sheet metal, and are named after their use on automobile fenders. They can also be used to make a connection to a hole that has been enlarged by rust or wear. In the UK, the name originally comes from the size of the old British penny.
What washers are used on flat surfaces?
What are the different types of washers?
| Type of Washer | Description | Shape |
|---|---|---|
| Flat | The most common type of washer, with two flat surfaces | Round or square |
| Sealing | Made of relatively soft materials | Round |
| Slotted | Has a slot the same width as the hold diameter that is cut from the center to the perimeter | Round |