M8 x 20mm Flanged Hexagon Bolts (DIN 6921) - Marine Stainless Steel (A4)

SEF-M8-20-A4

Key Features

  • M8 Metric Thread Size (8mm)
  • A4 Stainless Steel, also known as marine grade or 316 Stainless Steel. Details.
  • Thread Size (T): M8 (8mm)
  • Length (L): 20mm
  • Flange Diameter (D): 18mm
View Full Technical Specification.

Available In Other Materials & Finishes


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M8 x 20mm Flanged Hexagon Bolts (DIN 6921) - Marine Stainless Steel (A4) Technical Specification

M8 x 20mm Flanged Hexagon Bolts (DIN 6921) - Marine Stainless Steel (A4) Drawing
Material SpecificationMarine Stainless Steel (A4)
FinishNatural
Flange Diameter (D)18mm
Head Length (H)8.1mm
Hexagon Width A/F (J)13mm
Length (L)20mm
Manufacturing StandardDIN 6921
MaterialMarine Stainless Steel (A4)
Metric or Imperial?Metric
Pitch1.25mm
Thread Size (T)M8 (8mm)

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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M8 x 20mm Flanged Hexagon Bolts (DIN 6921) - Marine Stainless Steel (A4) Description

The M8 x 20mm Flanged Hexagon Bolts (DIN 6921) - Marine Stainless Steel (A4) has the following features:

  • M8 (8mm) Thread Size (T)
  • 8.1mm Head Length (H)
  • DIN 6921 Manufacturing Standard
  • 20mm Length (L)
  • Marine Stainless Steel (A4) Material
  • 1.25mm Pitch
  • Natural Finish
  • Metric Metric or Imperial?
  • 18mm Flange Diameter (D)
  • 13mm Hexagon Width A/F (J)
  • Marine Stainless Steel (A4) Material Specification

Discover more about the Flanged Hexagon Bolts range

Flanged Hexagon Bolts are fully threaded, and feature an integrated circular flange for enhanced load distribution, which can negate the need to use a Washer. Flanged Hex Bolts are designed for use alongside Accu’s Hexagon Nuts ranges. Serrated Flanged Hexagon Bolts can also be purchased from Accu for applications where improved grip and resistance to vibration are required.

Flanged Hexagon Bolts are available in A2 and A4 Stainless Steel as standard, but can also be manufactured from the engineering thermoplastic PEEK. Additional features such as Thread Locking Patches and Chemical Blackening are also available for Accu's Stainless Steel Bolts. For alternative materials not listed on this page, please contact our team.

Metric Sizes

Flanged Hexagon Bolts are available in metric sizes as standard, and are manufactured according to DIN 6921. This type of bolt is available in diameters ranging from M5 to M10, and lengths of between 8mm and 100mm. Flange diameters range from 11.80mm up to 22.30mm, with non-standard sizes also available on request.


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:Sunday, June 28, 2015
Stock Last Updated:09:55 am
Friday, September 24, 2021
Specification Last Updated:Friday, September 24, 2021

APC / Barcodes

APC (Accu Product Code):SEF-M8-20-A4
EAN13 (International Article No.):5054328106093
ASIN (Amazon Stock Identification No.):ASIN not defined.