M39 (39mm) 200HV Flat Washers (ISO 7089) - Marine Stainless Steel (A4)


Key Features

  • For Use With Thread Size: M39 (39mm)
  • External Diameter (OD): 66mm
  • Thickness (T): 6mm
  • Material: 200HV Marine Stainless Steel (A4)
  • Finish: Natural
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M39 (39mm) 200HV Flat Washers (ISO 7089) - Marine Stainless Steel (A4) Technical Specification

M39 (39mm) 200HV Flat Washers (ISO 7089) - Marine Stainless Steel (A4) Drawing
External Diameter (OD)66mm
For Use With Thread SizeM39 (39mm)
Internal Diameter (ID)40mm
Manufacturing StandardISO 7089
Material200HV Marine Stainless Steel (A4)
Material Specification200HV Marine Stainless Steel (A4)
Metric or Imperial?Metric
Thickness (T)6mm

Product Certifications

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

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M39 (39mm) 200HV Flat Washers (ISO 7089) - Marine Stainless Steel (A4) Description

The M39 (39mm) 200HV Flat Washers (ISO 7089) - Marine Stainless Steel (A4) has the following features:

  • ISO 7089 Manufacturing Standard
  • 40mm Internal Diameter (ID)
  • 66mm External Diameter (OD)
  • 6mm Thickness (T)
  • 200HV Marine Stainless Steel (A4) Material
  • 200HV Marine Stainless Steel (A4) Material Specification
  • Natural Finish
  • Metric Metric or Imperial?
  • M39 (39mm) 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):Over 5kg. Add to cart to calculate exact weights.

Component History

Product First Available:Thursday, July 21, 2016
Stock Last Updated:03:47 am
Thursday, October 21, 2021
Specification Last Updated:Thursday, October 21, 2021

APC / Barcodes

APC (Accu Product Code):HPW-M39-V1-A4
EAN13 (International Article No.):5057196589449
ASIN (Amazon Stock Identification No.):ASIN not defined.