Square and round washers are among the most common washer types for DIY projects, industrial use, and construction work. Both perform the same function and are basically interchangeable, but they’re suited for different applications.
Today, we’ll highlight the differences between these two types of washers (besides shape) and help you pick the best one for your needs.
Square Washers
Square washers are a type of flat or beveled washer popular in industrial applications. Their square shape allows these washers to distribute loads evenly and prevent rotation. Most square washers are made from aluminum and steel, but you may stumble upon brass square washers.
Common Applications of Square Washers
The square shape of these washers gives the washers certain attributes which make them suitable for applications like
Construction using structural steel: square washers are great for structural steel connections, specifically bolting beams and columns. Their wider surface area allows better load distribution, reducing the risk of deflection and structural damage.
Automotive and aerospace use: These washers are ideal for situations requiring precision and reliability, like in fastening automotive and aerospace parts.
Electrical and plumbing installations: The square shape allows square washers to firmly secure plumbing and electrical installations to walls and other mounting surfaces.
Round Washers
As the name implies, a round washer is a circular, flat, thin metal disc with a hole whose diameter is slightly larger than that of the bolt or screw it is intended to accompany. Its circular shape is advantageous for applications like:
Woodworking and furniture: The round shape efficiently distributes loads from screws and bolts over a large surface area so they don’t sink and damage wood fibers.
Sheet metal fabrication: Round washers are great for reinforcing sheet metal fabrications to provide additional support for structures and assemblies. This makes them a top choice for DIY sheet meal projects.
General construction: Construction craftspersons use round washers to fasten various components and installations during construction.
Make the Right Choice
Both square and round washers are suitable for various applications, depending on their specific use. Square washers excel when you need enhanced load distribution, rotation prevention, and stability. On the other hand, round washers offer versatility, ease of installation, and compatibility with general applications.
Talk to us today if you need high-quality, durable washers in the USA. At Minneapolis Washer and Stamping Inc., we’ll advise you on the best type of washer for your specific use.