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Hexagon Long Coupling Nut

DIN 6334

Material
Stainless Steel, Carbon Steel
Property Class
8, A2-70, A4-80, 10
Finish
Passivated, Plain, Zinc Plated, Hot Dip Galvanized and more
Size range
M6–M36
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Select sizes and quantities — 9 confirmed sizes to DIN 6334

Material
Grade
Stainless SteelCarbon Steel
Finish
dNominal Diameter (mm)PThread Pitch (mm)sWidth Across Flats (max) (mm)eWidth Across Corners (min) (mm)mNut Height (mm)MOQQuantity and inquiry
M611011.05182000
M81.251314.38242000
M101.51718.9301000
M121.751921.1361000
M1622426.75481000
M202.53033.5360500
M2433639.9872500
M303.54650.8590500
M3645560.79108500

Showing 9 of 9 sizes

M6 × 1 × 10 × 11.05 × 18

dNominal Diameter (mm)M6
PThread Pitch (mm)1
sWidth Across Flats (max) (mm)10
eWidth Across Corners (min) (mm)11.05
mNut Height (mm)18
MOQ2000

M8 × 1.25 × 13 × 14.38 × 24

dNominal Diameter (mm)M8
PThread Pitch (mm)1.25
sWidth Across Flats (max) (mm)13
eWidth Across Corners (min) (mm)14.38
mNut Height (mm)24
MOQ2000

M10 × 1.5 × 17 × 18.9 × 30

dNominal Diameter (mm)M10
PThread Pitch (mm)1.5
sWidth Across Flats (max) (mm)17
eWidth Across Corners (min) (mm)18.9
mNut Height (mm)30
MOQ1000

M12 × 1.75 × 19 × 21.1 × 36

dNominal Diameter (mm)M12
PThread Pitch (mm)1.75
sWidth Across Flats (max) (mm)19
eWidth Across Corners (min) (mm)21.1
mNut Height (mm)36
MOQ1000

M16 × 2 × 24 × 26.75 × 48

dNominal Diameter (mm)M16
PThread Pitch (mm)2
sWidth Across Flats (max) (mm)24
eWidth Across Corners (min) (mm)26.75
mNut Height (mm)48
MOQ1000

M20 × 2.5 × 30 × 33.53 × 60

dNominal Diameter (mm)M20
PThread Pitch (mm)2.5
sWidth Across Flats (max) (mm)30
eWidth Across Corners (min) (mm)33.53
mNut Height (mm)60
MOQ500

M24 × 3 × 36 × 39.98 × 72

dNominal Diameter (mm)M24
PThread Pitch (mm)3
sWidth Across Flats (max) (mm)36
eWidth Across Corners (min) (mm)39.98
mNut Height (mm)72
MOQ500

M30 × 3.5 × 46 × 50.85 × 90

dNominal Diameter (mm)M30
PThread Pitch (mm)3.5
sWidth Across Flats (max) (mm)46
eWidth Across Corners (min) (mm)50.85
mNut Height (mm)90
MOQ500

M36 × 4 × 55 × 60.79 × 108

dNominal Diameter (mm)M36
PThread Pitch (mm)4
sWidth Across Flats (max) (mm)55
eWidth Across Corners (min) (mm)60.79
mNut Height (mm)108
MOQ500

Product details

Description
Hexagon long coupling nut manufactured to DIN 6334. Designed to join two externally threaded fasteners of equal diameter and pitch, providing a secure, extended connection. Available in metric diameters from M6 to M24, with carbon steel grades 8 and 10, and stainless steel grades A2-70 and A4-80. Surface finishes include zinc plating, hot dip galvanizing, Dacromet, blackening, plain, and passivation. For quotation, specify diameter, pitch, material, grade, finish, and required quantity.
Features
Hexagon form driven by standard spanners and sockets · Thread and across-flats dimensions fixed by DIN 6334 · Available in M6–M24 · Stainless Steel and Carbon Steel options · Class A2-70, A4-80, 8 and more
Applications
Joints subject to vibration, Machinery and moving equipment, Automotive and vehicle assembly

Order assurance

Confirmed for the quoted product and order.

Reports & inspection

Agreed in the quotation.

  • EN 10204 3.1 material certificate
  • Dimensional inspection report
  • Certificate of conformity
  • Mechanical test report
  • Chemical analysis report
  • Coating inspection report
  • Batch and lot traceability

Packaging & delivery

Options we supply.

  • Bulk carton packing
  • Small boxes with outer cartons
  • Palletized shipment
  • Fumigation-free pallets
  • Inner poly bags
  • Buyer branding and labels

Product questions

What sizes of Hexagon Long Coupling Nut do you supply?

Execution standard: DIN 6334. The confirmed specification table covers M6–M36 diameters. Use the specification table to select the exact variant required for quotation.

Which materials, grades and finishes can I order?

Material: Stainless Steel, Carbon Steel; Property class: 8, A2-70, A4-80, 10; Finish: Passivated, Plain, Zinc Plated, Hot Dip Galvanized, Dacromet, Blackened. Availability should be confirmed against the selected specification and order quantity.

Where are these nuts typically used?

Typical applications include Joints subject to vibration, Machinery and moving equipment, Automotive and vehicle assembly. Final suitability depends on the selected material, grade, finish and operating conditions.

Quote Hexagon Long Coupling Nut

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