What are the 4 types of washers?

Following are the types of washers, as per their utility and functions:
  • Torque washer.
  • Flat washer.
  • Fender washer.
  • Finishing or Countersunk washer.
  • Shoulder washer.
  • C-washer.

What type of lock washer should I use?

Use tooth lock washers for extra force.

They come in two forms: internal tooth and external tooth. Internal tooth washers work best on small screws or screws used in electrical grounding, while external tooth washers work best on large screws. Tooth lock washers work well with aluminum and soft plastic surfaces.

What are the 2 types of split lock washer?

Regular and metric split-lock washers, heavy split-lock washers and high collar split-lock washers are made from carbon steel, and our high-alloy lock washers are manufactured from AISI-4037 alloy steel.

What are the three main types of washers?

There are three main types of washers: plain washers, spring washers and lock washers.

Does lock washer go on bolt side or nut side?

The lock washer should be placed under your threaded fastener – i.e., underneath a nut or the head of a screw or bolt. In assemblies where you have a nut and a bolt, the washer should be placed between the nut and the head of the bolt. You can then tighten the threaded fastener as normal.

Does it matter which way a lock washer goes?

In most cases where the bolt is easier to turn, the bolt has a round head that will cause less damage anyway. For the same reason, lock washers always go on the nut side to stop the nut moving. Lock washers are almost always used with a flat washer as well.

Should I use a flat washer with a lock washer?

In general, I use a flat washer under a split locking washer to protect the base material, plating, or coating from damage caused by the split washer action. I may also use the flat washer to distribute the fastener load or ensure the split washer does not fall or grind into a larger clearance hole feature.

When should you use a split lock washer?

Split washers can prevent bolts from loosening due to vibrations. As a machine or piece of equipment vibrates, the split washer will push back into it. Split washers are ideal for applications involving vibrations because they prevent the bolts with which they are used from loosening.

When should you use a flat washer?

The main role of flat washers is to increase the size of a screw’s bearing surface area, and reduce the surface pressure applied on the fastened object. Looseness can result when the bearing surface sinks under the surface pressure, so using a flat washer to reduce the surface pressure is very effective.

What is the difference between a lock washer and a flat washer?

In Conclusion

Flat and lock washers are two of the most common types of washers. A flat washer is a basic washer that’s flat on both sides. A lock washer is a semi-coiled washer that’s used to secure bolts in place.

Do you really need lock washers?

When are lock washers needed? Lock washers are needed when the fastener assembly is subject to vibration or wherever back off is considered an issue. When should I use washers with bolts? Always use a washer between the installation material and the nut.

What are star lock washers used for?

Starlock washers are a pressing used on plain shafts of steel, when a quick and permanent means of efficient assembly is needed. These washers dispel the need for threading and grooving operations, and are incredibly secure.

When should you use a spring washer?

For most applications, plain washers are typically used. For machines and objects that vibrate, spring washers are recommended. Spring washers are unique because they provide an axial load that counters vibrations and, thus, prevents fasteners from loosening.

Are lock nuts or lock washers better?

To make the right decision, consider the final environment and type of application. Here is the basic breakdown of when you will want to use a locknut over a lock washer: When you need something that can handle the pressure that comes with torquing down a bolt or screw, choose a lock washer.

Does NASA use lock washers?

A field tech friend of mine told me of a study done by NASA showing that lock washers have no impact on a design’s safety and are just dead weight. Additionally, that both NASA and the navy have stopped using them as a result.