M4 Aerotight Locking Nuts - Marine Stainless Steel (A4)


Key Features

  • Thread Size: M4 (4mm)
  • Width A/F Max (J): 7.00mm
  • Nut Thickness (T) [Min]: 2.69mm
  • Material: Marine Stainless Steel (A4)
  • Finish: Natural
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M4 Aerotight Locking Nuts - Marine Stainless Steel (A4) Technical Specification

M4 Aerotight Locking Nuts - Marine Stainless Steel (A4) Drawing
End Diameter (D) [Max]6.65mm
MaterialMarine Stainless Steel (A4)
Nut Thickness (T) [Min]2.69mm
Overall Height (H) [Max]4.79mm
Thread SizeM4 (4mm)
Width A/F Max (J)7mm

Product Certifications

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

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M4 Aerotight Locking Nuts - Marine Stainless Steel (A4) Description

The M4 Aerotight Locking Nuts - Marine Stainless Steel (A4) has the following features:

  • Marine Stainless Steel (A4) Material
  • 0.70mm Pitch
  • Natural Finish
  • M4 (4mm) Thread Size
  • 4.79mm Overall Height (H) [Max]
  • 6.65mm End Diameter (D) [Max]
  • 7.00mm Width A/F Max (J)
  • 2.69mm Nut Thickness (T) [Min]

Discover more about the Aerotight Nuts range

An Aerotight Nut is a variant of self-locking Nuts with anti-vibration properties. Unlike other locking nuts, the innovative design of an Aerotight Nut allows it to be reused several times, and the locking mechanism allows the Nut to be effective even when not fully tightened.

Aerotight Nuts are also an all-metal construction, which makes them free from potentially vulnerable inserts. An all-metal construction gives Aerotight Nuts a significant advantage over alternative self-locking components such as Nylon Locking Nuts, making them more resistant to high temperatures, humid environments, and most chemicals.

Aerotight Nuts

The Aerotight brand is a recognised name within the fastener industry, and has built a reputation for quality and reliability in precision engineering. Aerotight components have been implemented into high performance applications for many years, and have become known for their ability to out-perform alternative self-locking Nuts in even the most hostile environments. Discover Aerotight nuts and other locking mechanisms in our How Do Locking Nuts Work article and watch our tutorial video to see the difference. 


Nuts within the Aerotight range are available in metric thread sizes ranging from M2.5 to M24.


Aerotight nuts are available as standard in A1 Stainless Steel. Additional ranges on A2, A4, and A4-80 Stainless Steel can be manufactured to order. AccuBlack Chemical Matte Black Coatings can be applied on request.

Shipping Information

Shipping Destinations:Worldwide.
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Weight: 0.00kg.

Component History

Product First Available:Wednesday, May 2, 2018
Stock Last Updated:08:52 pm
Tuesday, November 30, 2021
Specification Last Updated:Tuesday, November 30, 2021

APC / Barcodes

APC (Accu Product Code):HAEN-M4-A4
EAN13 (International Article No.):5057195301639
ASIN (Amazon Stock Identification No.):ASIN not defined.