M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) (pack of 1)

Accu Product Code (APC): HPW-M1.6-V1-A2-BL

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M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) (pack of 1)

Accu Product Code (APC): HPW-M1.6-V1-A2-BL

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Accu Product Code (APC): HPW-M1.6-V1-A2-BL
For Use With Thread Size: M1.6 (1.6 mm)
External Diameter (OD): 4 mm Tolerance: +0/-0.3 mm
Thickness (T): 0.3 mm Tolerance: +0/-0.1 mm
Material: Stainless Steel - 200HV (A2)
Finish: Matte Black
Internal Diameter (ID): 1.7 mm Tolerance: +0.14/-0 mm
Manufacturing Standard: ISO 7089
Material Family: Stainless Steel
System of Measurement: Metric
Weight per 100 Units: 4 g

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M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) Description

The M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) has the following features:

External Diameter (OD): 4 mm
External Diameter (OD) Tolerance: +0/-0.3 mm
Matte Black Finish
For Use With Thread Size: M1.6 (1.6 mm)
Internal Diameter (ID): 1.7 mm
Internal Diameter (ID) Tolerance: +0.14/-0 mm
Manufacturing Standard: ISO 7089
Stainless Steel - 200HV (A2)
Stainless Steel Material Family
System of Measurement: Metric
Thickness (T): 0.3 mm
Thickness (T) Tolerance: +0/-0.1 mm

Discover more about the Metric Flat Washers range.

Metric Flat Washers, part of Accu's Stainless Steel Washer & Spacers range, are designed primarily to enhance the load-bearing capabilities of a threaded fastener. These components 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.

Materials

Accu's standard range of Metric Flat Washers is manufactured from Aluminium, A2, A4 and Bumax Stainless Steel, with a blackened finish available on all stainless steel options.

All Stainless Steel Washers are resistant to tarnishing and corrosion, but A4 (316) Stainless Steel is specifically designed for use in marine environments.

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

Metric Flat Washer Sizes

Accu's Metric Flat Washers are compatible with thread sizes ranging from M1 to M56. This category includes only metric sizes – Imperial Flat Washers are available separately.

Shipping Information

Shipping Destinations:

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Weight (100 items):

0.004kg

Component History

Product First Available:

Friday, June 3, 2016

Stock Last Updated:

03:07 AMSaturday, June 6, 2026

Specification Last Updated:

Saturday, June 6, 2026

Barcodes

APC (Accu Product Code):

HPW-M1.6-V1-A2-BL

EAN13 (International Article No.):

5057196505586

ASIN (Amazon Stock Identification No.):

ASIN not defined.

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M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) (pack of 1)

M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) M1.6 x 4mm 200HV Flat Washers (ISO 7089) - Black Stainless Steel (A2) (pack of 1)

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