Square cone washers are a type of flat washer with a square-shaped inner diameter. These washers are used to provide a tight seal between two surfaces, or to act as a spacer between two components. They are available in both metric and imperial sizes. Metric square cone washers are typically made from stainless steel, while imperial square cone washers can be made from either stainless steel or brass. Square washers can also be referred to as square conical washers, square countersunk washers, or square cup washers.

Stainless Steel or Brass

These washers are an important component in many industries, including the automotive, plumbing, and electronics industries. They are used to create a tight seal between surfaces, or to prevent two components from rubbing against each other. When selecting a square washer for your application, it is important to consider the size, material, and finish of the washer.

Metric and Imperial

The size is determined by the inner diameter (ID) and outer diameter (OD) of the washer. The ID is the measurement of the hole in the center of the square cone washer, and the OD is the measurement of the washers outside edge. Metric square cone washers have an ID that is typically 3mm to 30mm, and an OD that is 5mm to 50mm. Imperial square cone washers have an ID that is typically 1/8" to 1-1/2", and an OD that is 3/16" to 2". Square cones are typically made from either stainless steel or brass. Stainless steel washers are more resistant to corrosion than brass. 

Zinc Plated

Brass square cone washers are softer than stainless steel square cone washers and will crush under heavy loads, making them ideal for applications where a soft seal is required. The finish of a square cone washer can be either plain or zinc plated. Plain ones are unpainted and have no protective coating. Zinc plated square washers have a thin layer of zinc that protects the washer from corrosion. They are an essential component in many industries and are available, again, in both metric and imperial sizes. When selecting a washer for your unique needs, it is important to consider the company or distributor. Contact Texas Specialty Fasteners today!