Seastrom logo menu
close
Home Search Request a Quote Custom Capabilities Standard Hardware Military Hardware Standard Washers Engineering About Us Contact Us Customer Service Login Register View Cart Checkout
Seastrom Manufacturing Co., Inc.
phone 800-634-2356 email info@seastrom-mfg.com
person Login | Register
REQUEST A QUOTE
search shopping_cart
View Cart Checkout
home
  • Standard & Military Washers
    • Standard Flat Washers
    • Military Washers
    • ANSI Standard Washers
    • Pre-Packaged Washers
    • Centering Washers
    • Clipped Washers
    • Countersunk Washers
    • C-Shaped Washers
    • D-Shaped Washers
    • D-Shaped Hole Washers
    • Finishing Washers
    • Flattened Shaft Washers
    • Hexagonal Hole Washers
    • Key Washers
    • Laminated Washers
    • Lock Washers
    • Notch Washers
    • Rectangular Washers
    • Retaining Washers
    • Retention Washers
    • Shoulder Washers
    • Split Washers
    • Spherical Washers
    • Spring Washers
    • Square Washers
    • Square Hole Washers
    • Tab Washers
    • Terminal Cup Washers
  • Standard Hardware
    • Bus Bars
    • Clamps & Brackets
    • Expansion Plugs
    • Formed Nuts
    • Ground Straps
    • Hiram Jones Terminals
    • Jumpers
    • Military Hardware
    • Nut Strips
    • Push-On Nuts
    • Retaining Rings
    • Solder Lugs
    • Solid State Insulators
    • Spacers
    • Spring Clips
    • Tags
  • Military Hardware
    • AN
    • M
    • MS
    • NAS
    • Aircraft/Aerospace Industry Approved
  • Custom Capabilities
    • Custom Washers and Hardware
    • Precision Stamping
    • CNC Machining
    • Swiss CNC Automatic Lathe
    • Multi Spindle Screw Machine
    • Four Slide
    • Laser Part Marking
    • Water Jet
    • Special Packaging
    • Engineering
  • Engineering
  • About Us
    • Contact Us
    • About Us
    • Testimonials
    • Industries Served
    • Environmental Statement
    • Careers
  • Customer Service
    • Careers
    • Customer Satisfaction Survey
    • Credit Application
    • Certification and Compliance
    • Terms & Conditions
    • Environmental Statement
    • Seastrom FAQs
Standard, Round Flat Washers & Shims Search

Standard, Round Flat Washers & Shims Search

Seastrom is the original stocking manufacturer. Beyond our extensive standard, round flat washer catalog, we maintain thousands of stock tools to manufacture any non-standard flat washer sizes our customers should require. There is no tooling charge for any non-standard sizes within these parameters:

ID - Inside Dimensions from .020" to 3.00" OD - Outside Dimensions from .050" to 4.00" Industry standard thicknesses:

Seastrom can produce custom washers in all industry standard thicknesses in our state-of-the-art stamping department and any non-standard thicknesses with our extensive machining capabilities. All standard washers can be manufactured in all industry standard thicknesses even if not listed in our online catalog.

To specify a thickness not listed for a Seastrom standard part number: Example: 5710-10-XXX (thickness) Add -5 for .005 thickness, -10 for .010 thickness, etc. 5710-10-5

Add your desired thickness and then submit for a quote. We will return it to you promptly.

Start Your Search Here

Round Flat Washers
Round Flat Washers
Metric Flat Washers
Metric Flat Washers
Material: *
Metallic Materials Non-Metallic Materials
Screw Size:
Stock:
Standard:
Units:
  Minimum Maximum
ID:
OD:
Thk:
Material: *
Metallic Materials Non-Metallic Materials
Screw Size:
Optionally limit search results by dimensions:
  Minimum Maximum
ID:
OD:
Thk:

Round Flat Washers

  • Seastrom standards and ANSI standards in one search.
  • Seastrom standard flat washers provide an almost infinite number of ID, OD, Thickness and Material combinations to fit an requirement.
  • ID – Inside dimensions from .020” to 3.00”
  • OD - Outside dimensions from .050” to 4.00”
  • Thk – Thicknesses from .010 to .134
  • Metallic materials available: Aluminum, Brass, Beryllium Copper, Copper, Phosphor bronze, Steel (cold rolled steel), Stainless steel 316, Stainless steel, Titanium.
  • Non-metallic materials available: Acetal, Fiberglass, Fibre, Kapton, Mica, Mylar, Neoprene, Nylatron, Nylon, Phenolic, Polyethylene, PTFE, PVC.
VIEW DETAILS

Ansi Standard Flat Washers

  • Type B Plain Washers (ASME B 18.21.1 Edition 09-2009) are available in narrow, regular and wide series for each standard screw size.
  • The American National Standards Institute (ANSI) provides standards for general use flat washers. Type B is a series of flat washers with tighter tolerances where outside diameters are categorized as Narrow, Regular or Wide for specific bolt sizes.
  • Available screw sizes from 0 to 1”. If a specified screw size is not listed please email a quote request.
  • Metallic materials available: Aluminum, Brass, Beryllium Copper, Copper, Phosphor bronze, Steel (cold rolled steel), Stainless steel, Titanium.
  • Non-metallic materials available: Acetal, Fiberglass, Fibre, Neoprene, Nylon, Polyethylene, PTFE.

Metric Flat Washers

  • Seastrom standard metric washers meet the ANSI B18.22M standard for soft material flat washers. Part numbers are provided for the Regular category, but Narrow and Wide can also be quoted to meet your requirements.
  • ID – Inside dimensions from 1.95 mm to 17.52 mm
  • OD - Outside dimensions from 4.7 mm to 44 mm
  • Thk – Thicknesses from 0.5 mm to 4 mm
  • Metallic materials available: Aluminum, Brass, Beryllium Copper, Copper, Phosphor bronze, Steel (cold rolled steel), Stainless steel, Titanium.
  • Non-metallic materials available: Acetal, Fiberglass, Fibre, Kapton, Mica, Mylar, Neoprene, Nylatron, Nylon, Phenolic, Polyethylene, PTFE, PVC.

Contact Us

  • Request a Quote
  • call1-800-634-2356
  • emailinfo@seastrom-mfg.com
  • location_on456 Seastrom St, Twin Falls, ID 83301

Custom Capabilities

  • Custom Washers and Hardware
  • Precision Stamping
  • CNC Machining
  • Multi Spindle Screw Machine
  • Four Slide
  • Laser Part Marking
  • Water Jet

Product Directory

  • Washers
  • Fasteners / Assembly Hardware
  • Military Hardware

Company Info

  • About Us
  • Industries Served
  • Credit Application
  • Certification and Compliance
  • Terms and Conditions

Purely Custom

  • Bike Fitting
  • Bike Accessories
  • Precision Metalforming Association
  • ISO 100 Compliant
  • AS 9100 Compliant
  • Environmental Statement
  • Made in USA
  • ROHS Compliant
  • DFARS Compliant
  • Federal Firearms License
  • ITAR Compliant
  • Cage Code
icon-payment-visa icon-payment-mastercard icon-payment-discover icon-payment-amex

Use of this site acknowledges agreement of our Terms and Conditions. All website design, text, graphics, and the selection and arrangement thereof, are the property of Seastrom Manufacturing Co., Inc. and are Copyright ©2023 Seastrom Manufacturing Co., Inc. All Rights Reserved. SEASTROM, SEASTROM MANUFACTURING and the Seastrom logo are trademarks owned by Seastrom Manufacturing Co., Inc.