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M18 Hex Dome Nut, Metric, A4 (316) Stainless Steel, DIN 1587

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M18 Hex Dome Nut, Metric, A4 (316) Stainless Steel, DIN 1587

M18 Corrosion Resistant Dome Nut

M18 hex dome nut manufactured in A4 stainless steel for excellent corrosion resistance making it ideal for internal and external use, including salt water marine environments.

This dome nut (also called an acorn nut or cap nut) has a dome shape that gives it a smooth rounded appearance. This serves as both functional and aesthetic as the dome nut prevents the bolt thread from protruding.

This offers a safer and more polished finish which often sees them used in public areas where the nut and the end of the bolt are exposed.

Installed with conventional tools sees these dome nuts widely used by both DIY enthusiasts and professionals alike across numerous industries.

M18 Dome Nut Specifications

  • Thread Diameter: M18 - 18mm
  • Socket size (SS): 27mm max
  • Hex nut height (NH): 15mm max
  • Overall domed nut height (H): 32mm
  • Thread Pitch: 2.5mm
  • Material: A4 (316) stainless steel
  • Manufacturing standard: DIN 1587

Key features & benefits of dome head nuts

  • Domed closed design - covers exposed threads for safety and aesthetics
  • Hexagonal body - easy to install using a range of standard tools
  • Marine grade corrosion resistance - high corrosion resistance and reduces risk of corrosion and thread damage
  • Improved safety - eliminates sharp or exposed bolt ends
  • Versatile use - suitable for indoor, outdoor, and visible applications

Common applications of dome head nuts

  • Furniture and architectural fittings
  • Automotive and motorcycle assemblies
  • Handrails, balustrades, and signage
  • Machinery guards and exposed bolt ends
Part of a large and growing range of hex nuts in stock at Fusion Fixings with bulk discounts across the range.

Frequently Asked Questions about dome head hex nuts

What is a dome nut used for?

Dome nuts are used to cover exposed bolt threads, improving safety, preventing snagging, and gives a clean, professional appearance. They are commonly used on furniture, railings, vehicles, and visible fixings.

Are dome nuts the same as acorn nuts?

Yes, dome nuts, acorn nuts, and cap nuts all refer to the same type of fastener. The names are used interchangeably across the UK and internationally.

Can dome nuts be used outdoors?

Yes, these dome nuts are manufactured in A4 stainless steel. This offers a high level of corrosion resistance including the use in salt water and marine environments. 

Do dome nuts make fixings safer?

Yes, the dome nuts can make the fixings safer as they are designed to cover sharp or protruding threads. Dome nuts reduce the risk of cuts, snags, and injury, making them ideal for public-facing or domestic applications.

Can you reuse dome nuts?

Dome nuts can be reused provided the threads are not damaged and the nut has not been overtightened or corroded.
Select Quantity Break
From $0.88

Original: $2.93

-70%
M18 Hex Dome Nut, Metric, A4 (316) Stainless Steel, DIN 1587—

$2.93

$0.88

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Description

M18 Corrosion Resistant Dome Nut

M18 hex dome nut manufactured in A4 stainless steel for excellent corrosion resistance making it ideal for internal and external use, including salt water marine environments.

This dome nut (also called an acorn nut or cap nut) has a dome shape that gives it a smooth rounded appearance. This serves as both functional and aesthetic as the dome nut prevents the bolt thread from protruding.

This offers a safer and more polished finish which often sees them used in public areas where the nut and the end of the bolt are exposed.

Installed with conventional tools sees these dome nuts widely used by both DIY enthusiasts and professionals alike across numerous industries.

M18 Dome Nut Specifications

  • Thread Diameter: M18 - 18mm
  • Socket size (SS): 27mm max
  • Hex nut height (NH): 15mm max
  • Overall domed nut height (H): 32mm
  • Thread Pitch: 2.5mm
  • Material: A4 (316) stainless steel
  • Manufacturing standard: DIN 1587

Key features & benefits of dome head nuts

  • Domed closed design - covers exposed threads for safety and aesthetics
  • Hexagonal body - easy to install using a range of standard tools
  • Marine grade corrosion resistance - high corrosion resistance and reduces risk of corrosion and thread damage
  • Improved safety - eliminates sharp or exposed bolt ends
  • Versatile use - suitable for indoor, outdoor, and visible applications

Common applications of dome head nuts

  • Furniture and architectural fittings
  • Automotive and motorcycle assemblies
  • Handrails, balustrades, and signage
  • Machinery guards and exposed bolt ends
Part of a large and growing range of hex nuts in stock at Fusion Fixings with bulk discounts across the range.

Frequently Asked Questions about dome head hex nuts

What is a dome nut used for?

Dome nuts are used to cover exposed bolt threads, improving safety, preventing snagging, and gives a clean, professional appearance. They are commonly used on furniture, railings, vehicles, and visible fixings.

Are dome nuts the same as acorn nuts?

Yes, dome nuts, acorn nuts, and cap nuts all refer to the same type of fastener. The names are used interchangeably across the UK and internationally.

Can dome nuts be used outdoors?

Yes, these dome nuts are manufactured in A4 stainless steel. This offers a high level of corrosion resistance including the use in salt water and marine environments. 

Do dome nuts make fixings safer?

Yes, the dome nuts can make the fixings safer as they are designed to cover sharp or protruding threads. Dome nuts reduce the risk of cuts, snags, and injury, making them ideal for public-facing or domestic applications.

Can you reuse dome nuts?

Dome nuts can be reused provided the threads are not damaged and the nut has not been overtightened or corroded.