M8 Collar Nuts - Marine Stainless Steel (A4)


Key Features

  • M8 Metric Thread Size (8mm)
  • 3 Year Extended Warranty.
  • Free Technical Support From Our Engineers.
  • A4 Stainless Steel, also known as marine grade or 316 Stainless Steel. Details.
  • Thread Size: M8 (8mm)
View Full Technical Specification.

Available In Other Materials & Finishes

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M8 Collar Nuts - Marine Stainless Steel (A4) Technical Specification

M8 Collar Nuts - Marine Stainless Steel (A4) Drawing
Collar Diameter (d)18mm
Collar Thickness (T)3.5mm
Manufacturing StandardDIN 6331
MaterialMarine Stainless Steel (A4)
Material SpecificationMarine Stainless Steel (A4)
Nut Length (W)12mm
Nut Width A/F (F)13mm
Nut Width A/P (C)14.38mm
Thread SizeM8 (8mm)

Product Certifications

RoHS Certified
RoHS Certified
REACH Certified
REACH Certified
Quality Approved

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M8 Collar Nuts - Marine Stainless Steel (A4) Description

The M8 Collar Nuts - Marine Stainless Steel (A4) has the following features:

  • DIN 6331 Manufacturing Standard
  • 13mm Nut Width A/F (F)
  • Marine Stainless Steel (A4) Material
  • Marine Stainless Steel (A4) Material Specification
  • 1.25mm Pitch
  • Natural Finish
  • 14.38mm Nut Width A/P (C)
  • M8 (8mm) Thread Size
  • 18mm Collar Diameter (d)
  • 3.5mm Collar Thickness (T)
  • 12mm Nut Length (W)

Discover more about the Metric Collar Nuts range.

Collar Nuts feature an integrated collar for enhanced load distribution. A Collared Nut is similar to a Flanged Hexagon Nut, but a collar does not feature a sloped edge.


Collar Nuts are manufactured in both A2 and A4 Stainless Steel, with Chemical Blackening available.


Metric Collar Nuts are available in thread sizes of between M6 and M36. Collar diameters range from 14mm up to 68mm.

Shipping Information

Shipping Destinations:Worldwide.
View delivery information.
Weight Band (100 items):Between 1kg and 5kg. Add to cart to calculate exact weights.

Component History

Product First Available:Wednesday, May 25, 2016
Stock Last Updated:01:43 pm
Thursday, January 20, 2022
Specification Last Updated:Thursday, January 20, 2022

APC / Barcodes

APC (Accu Product Code):HCON-M8-A4
EAN13 (International Article No.):5057196440863
ASIN (Amazon Stock Identification No.):ASIN not defined.