M6 Form B Flat Washers (BS4320) - Black Marine Stainless Steel (A4)

HTW-M6-A4-BL

Key Features

  • M6 Metric Thread Size (6mm)
  • For Use With Thread Size: M6 (6mm)
  • External Diameter (OD): 12.5mm
  • Thickness (T): 0.8mm
  • Material: Marine Stainless Steel (A4)
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M6 Form B Flat Washers (BS4320) - Black Marine Stainless Steel (A4) Technical Specification

M6 Form B Flat Washers (BS4320) - Black Marine Stainless Steel (A4) Drawing
External Diameter (D) Tolerance+0/-0.4mm
External Diameter (OD)12.5mm
FinishMatte Black
For Use With Thread SizeM6 (6mm)
Internal Diameter (B) Tolerance+0.3/-0mm
Internal Diameter (ID)6.4mm
Manufacturing StandardBS4320
MaterialMarine Stainless Steel (A4)
Material SpecificationMarine Stainless Steel (A4)
Metric or Imperial?Metric
Thickness (T)0.8mm
Thickness (T) Tolerance+/-0.2mm

Product Certifications

Certificate of Conformity Included
Certificate of Conformity Included
RoHS Certified
RoHS Certified
REACH Certified
REACH Certified
ISO9001
ISO9001
Quality Approved

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M6 Form B Flat Washers (BS4320) - Black Marine Stainless Steel (A4) Description

The M6 Form B Flat Washers (BS4320) - Black Marine Stainless Steel (A4) has the following features:

  • BS4320 Manufacturing Standard
  • 6.4mm Internal Diameter (ID)
  • 12.5mm External Diameter (OD)
  • 0.8mm Thickness (T)
  • Marine Stainless Steel (A4) Material
  • Marine Stainless Steel (A4) Material Specification
  • Matte Black Finish
  • Metric Metric or Imperial?
  • +0.3/-0mm Internal Diameter (B) Tolerance
  • +0/-0.4mm External Diameter (D) Tolerance
  • +/-0.2mm Thickness (T) Tolerance
  • M6 (6mm) 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.

Materials

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: 0.00kg.

Component History

Product First Available:Sunday, June 28, 2015
Stock Last Updated:12:44 am
Wednesday, October 27, 2021
Specification Last Updated:Tuesday, October 26, 2021

APC / Barcodes

APC (Accu Product Code):HTW-M6-A4-BL
EAN13 (International Article No.):5057195022367
ASIN (Amazon Stock Identification No.):ASIN not defined.