Round Flat Washers & Shims Search


Seastrom Manufacturing has been the proven leader in the manufacture of round flat washers and shims since 1928. Seastrom’s online catalog offers the largest stock assortment of standard and specialty sizes available in both metallic and non-metallic materials. Our large inventory of round flat washers, shims and metric round flat washers provides our customers maximum flexibility to find the part that best fits their application.

Refine your search by one or all of the following criteria: ID, OD, Thk, Screw Size, Material, Seastrom Standard, ANSI standard, all available part numbers, all part numbers with stock. Create as general or specific a search as you need.
  User Guide
Round Flat Washers (Material thickness .010 and thicker)
  • View round flat washers by material
  • Seastrom standards and ANSI standards in one search.
  • 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.
  • 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.
Shims (Material thickness .010 and thinner)
  • Seastrom standard part numbers in standard and specialty sizes in one search.
  • ID – Inside dimensions from .020” to 3.00”
  • OD - Outside dimensions from .050” to 4.00”
  • Thk – Thicknesses from .001 to .010
  • 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.
Metric Round Flat Washers
  • Seastrom standard part numbers in standard and specialty sizes in one search.
  • 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.


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Round Flat Washers
Shims
Metric Washers
Search for Round Flat Washers

Seastrom and ANSI Standard Round Flat Washers are available in a wide variety of materials and dimensions.

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