12mm Medium Flat Pin Washers (DIN 1440) - Stainless Steel (A2)


Key Features

  • A2 Stainless Steel, also known as 18-8 or 304 Stainless Steel. Details.
  • For Use With Thread Size: M12 (12mm)
  • External Diameter (OD): 25mm
  • Thickness (T): 3.0mm
  • Material: Stainless Steel (A2)
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12mm Medium Flat Pin Washers (DIN 1440) - Stainless Steel (A2) Technical Specification

12mm Medium Flat Pin Washers (DIN 1440) - Stainless Steel (A2) Drawing
External Diameter (OD)25mm
For Use With Thread SizeM12 (12mm)
Internal Diameter (ID)12mm
Manufacturing StandardDIN 1440
MaterialStainless Steel (A2)
Material SpecificationStainless Steel (A2)
Metric or Imperial?Metric
Thickness (T)3.0mm

Product Certifications

Certificate of Conformity Included
Certificate of Conformity Included
RoHS Certified
RoHS Certified
REACH Certified
REACH Certified
Quality Approved

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12mm Medium Flat Pin Washers (DIN 1440) - Stainless Steel (A2) Description

The 12mm Medium Flat Pin Washers (DIN 1440) - Stainless Steel (A2) has the following features:

  • DIN 1440 Manufacturing Standard
  • 12mm Internal Diameter (ID)
  • 25mm External Diameter (OD)
  • 3.0mm Thickness (T)
  • Stainless Steel (A2) Material
  • Stainless Steel (A2) Material Specification
  • Natural Finish
  • Metric Metric or Imperial?
  • M12 (12mm) For Use With Thread Size

Discover more about the Metric Flat Washers range

Flat Washers, one of Accu's Washer & Spacer range, are designed primarily to enhance the load-bearing capabilities of a threaded fastener, and are compatible with a wide range of Precision Screws. Flat Washers are versatile components with a variety of uses, including spacing, pre-load indication, and wear-protection.

Flat Washers are available in several variants with varying diameters and thicknesses. The most commonly used washers are forms A, B and C, with more specialised variants such as Penny Washers also available. Flat washer variants range from those with small external diameters and thicknesses, to very large washers with large external diameters.

Where a flat surface is not required, components such as Countersunk Washers or Spring Washers may be preferable.


Accu's standard range of Flat Washers is manufactured from A2, A4 and Bumax Stainless Steel, with Chemical Matte Blackening available. All Stainless Steel Washers are resistant to tarnishing and corrosion, but A4 Stainless Steel is specifically designed for use in marine environments.

Flat Washers can also be manufactured from a variety of specialist materials, including Aluminium, Brass, Phosphor Bronze, Nylon, PEEK, Polycetal and Titanium. Fibre and Rubber Flat Washers are intended to be pliable for sealing purposes.

Metric Flat Washers

Metric Flat Washers are available in sizes ranging from M1 to M56. This category includes only metric flat washers – Imperial Flat Washers in imperial sizes are available separately.

Shipping Information

Shipping Destinations:Worldwide.
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Weight Band (100 items):Between 0.5kg and 1kg. Add to cart to calculate exact weights.

Component History

Product First Available:Wednesday, May 25, 2016
Stock Last Updated:01:38 pm
Sunday, July 25, 2021
Specification Last Updated:Sunday, July 25, 2021

APC / Barcodes

APC (Accu Product Code):HPPW-M-12-A2
EAN13 (International Article No.):5057196452774
ASIN (Amazon Stock Identification No.):ASIN not defined.