W a s h e r  S p e c i f i c a t i o n s

Below, you will find some information which will aid you in your decision in purchasing standard or metric flat washers. Click here to fill out an ONLINE QUOTE FORM when ready to inquire on a particular washer:

When giving washer specifications, the universal "washer" terminology pertains to this diagram:

where OD represents Outside Diameter
where ID represents Inside Diameter

where TH represents Thickness

At WashersUSA.com, we manufacture standard and metric washers in most any material.

As for tolerances, our SHIM WASHERS maintain the industry standard:

Measurements Tolerance in Inches Tolerance in Millimeters
Inside Diameter (ID) +/- 0.005 in +/- 0.127 mm
Outside Diameter (OD) +/- 0.005 in +/- 0.127 mm
ID central to OD (Concentricity) +/- 0.005 in +/- 0.127 mm

For Gauge Tolerance Charts on various materials offered by WashersUSA.com, please click below:

For Material Properties on various materials offered, please click below:

Here is a useful conversion table when converting washer dimensions. Remember, here at WashersUSA.com, we manufacture washers in inches and millimeters:

Conversion Factors

Length 1 mm 0.03937 in
1 in 25.40 mm

As for material, we have access to nearly every possible washer material including, but not limited to:  


Aluminum Beryllium Copper Brass Carpenter 20
Celcon Bronze Copper Delrin
Felt Fibre High Carbon Steel Inconnel
Kapton Laminated Aluminum Laminated Brass Laminated Stainless Steel
Lead Mica Monel Mylar
Neoprene Nickel Nickel Silver Nylon
Nylatron Phenolic Phosphor Bronze Polyethylene
Polypropylene Silicon Bronze Steel Stainless Steel
Teflon Titanium Viton *anything you can imagine

  *Certificates of Compliance or chemical/physical analyses are available upon request*

At WashersUSA.com, we serve a wide variety of industries, including, but not limited to:

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