Are you tired of sifting through countless cap nut options? Understanding the top manufacturers can save you time and money. By knowing the best factories, you’ll ensure quality and reliability in your projects. Dive into our comparison to discover the ideal choice for your needs!

Industrial Cap Nuts Manufacturer – KD Fasteners, Inc.®

Product Details: Cap nuts are hex nuts with a domed cap on top, used as a decorative finish to cover up studs or threaded bolts. KD Fasteners, Inc.® supplies acorn cap nuts and rubber cap nuts in various materials and sizes.

Technical Parameters:
– Thread sizes range from 4-40 to 1′-8
– Materials include brass, plastic, steel (nickel plated, black oxide, plain), and…

Application Scenarios:
– Automotive industry
– Marine applications

Pros:
– Provides a decorative finish
– Available in various materials and sizes

Cons:
– Limited to specific thread sizes
– May not be suitable for high-stress applications

MRL Manufacturing Corp.

Product Details: MRL Manufacturing Corp. produces hex nuts, round nuts, cap or acorn nuts, and internal threaded parts.

Technical Parameters:
– Materials: stainless steel, steel, brass, aluminum
– Manufacturing capabilities for special orders from prints, samples, or design

Application Scenarios:
– Used in Aerospace
– Used in Military
– Used in Electronic
– Used in Commercial

Pros:
– Over 20 years of experience in manufacturing
– Ability to cross reference part numbers from major manufacturers

Cons:
– Distributors only
– Limited information on specific product dimensions or tolerances


MRL Manufacturing Corp.

Cap nut – All industrial manufacturers – DirectIndustry

Product Details: Cap nuts are fasteners with a domed top, used to cover the exposed end of a bolt or screw. They are available in various materials including steel, brass, and nylon, and come in different nominal diameters and heights.

Technical Parameters:
– Nominal diameter: 3 mm – 30 mm
– Height: 4 mm – 42 mm

Application Scenarios:
– Used in mechanical assemblies to provide a finished look and protect the threads…
– Commonly used in automotive and construction applications.

Pros:
– Provides a decorative finish to fasteners.
– Available in various materials for different environmental resistances.

Cons:
– May not provide as strong a hold as other types of nuts.
– Limited to specific applications where aesthetics are important.

76 Cap Nut Manufacturers in 2025 – Metoree

Product Details: Cap nuts, also known as domed cap nuts or acorn nuts, are hexagonal nuts with a closed end, designed to conceal the end of threaded rods or bolts, providing a clean and safe finish.

Technical Parameters:
– Hexagonal shape for secure tightening
– Available in various materials including steel, stainless steel, and copper allo…

Application Scenarios:
– Used in playground and gym equipment to enhance safety
– Applicable in aircraft seating for tamper resistance

Pros:
– Conceals sharp edges to reduce injury risk
– Prevents ingress of contaminants into bolt threads

Cons:
– Threads may remain vulnerable to corrosion
– Requires careful bolt length consideration for proper tightening

Cap Nut Suppliers | Cap Nut Manufacturers – Goodada

Product Details: Cap Nuts are specialized nuts designed to provide a finished appearance and protect the threads of a bolt or screw. They are commonly used in various applications where aesthetics and safety are important.

Technical Parameters:
– Material: Stainless Steel, Carbon Steel, Brass
– Standards: DIN, JIS, ANSI, BS

Application Scenarios:
– Automotive industry
– Construction and furniture assembly

Pros:
– Provides a finished look
– Protects threads from damage and corrosion

Cons:
– May be more expensive than standard nuts
– Limited to specific applications


Cap Nut Suppliers | Cap Nut Manufacturers - Goodada

Steel Cap Screws, Steel Bolts, Steel Nuts, Steel Acorn Nuts, Steel …

Product Details: Midwest Acorn Nut Company produces a variety of fasteners including Steel Cap Screws, Steel Bolts, Steel Nuts, Steel Acorn Nuts, Steel Washers, and Steel Spacers. They offer Cy-Chrome (nickel-chrome plated steel) and Cy-Nu (polished stainless steel) fasteners.

Technical Parameters:
– Cy-Chrome: Chrome Plated Steel Fasteners
– Cy-Nu: Polished Stainless Steel Fasteners

Application Scenarios:
– Automotive applications
– Industrial fastening solutions

Pros:
– Durable and corrosion-resistant materials
– Wide range of fasteners available

Cons:
– Not available for retail purchase
– Limited to distribution through dealers


Steel Cap Screws, Steel Bolts, Steel Nuts, Steel Acorn Nuts, Steel ...

Custom Nuts Manufacturer & Supplier | KD Fasteners, Inc.®

Product Details: Custom nuts manufactured by KD Fasteners, Inc.® are made-to-order nuts available in various materials including Carbon Steel, Alloy Steel, Stainless Steel, Aluminum, Titanium, Inconel, and Hastelloy. They can be produced in large or short runs and include a variety of types such as Hex Flange Nuts, Nylon Lock Nuts, and Cap Nuts.

Technical Parameters:
– Materials: Carbon Steel, Alloy Steel, Stainless Steel, Aluminum, Titanium, Incon…
– Production Capacity: Tens of thousands for large runs or short runs

Application Scenarios:
– Automotive industry
– Electronics industry

Pros:
– Wide variety of materials and nut types available
– Capability to handle both large and small production runs

Cons:
– Specific plating and color matching may require additional specifications
– Limited information on pricing and lead times

Industrial Nuts Manufacturer – KD Fasteners

Product Details: KD Fasteners, Inc.® offers a wide range of industrial nuts including finished hex nuts, nylon lock nuts, machine screw nuts, coupling nuts, thumb nuts, cap nuts, slotted hex nuts, castle nuts, and more. They provide nuts in both inch and metric sizes, and can manufacture custom nuts per specific size and plating specifications.

Technical Parameters:
– Available in various materials including plastic, stainless steel, aluminum, exo…
– Can be supplied in different coatings such as zinc, zinc yellow, and hot dipped…

Application Scenarios:
– Used in industrial applications where secure fastening is required.
– Suitable for applications that involve vibration or torque where nut loosening i…

Pros:
– Wide variety of nuts available for different applications.
– Custom manufacturing options available to meet specific requirements.

Cons:
– Potentially limited availability of some specialized nuts.
– Customization may lead to longer lead times.

Industrial Nut Supplier and Manufacturer | All-Pro Fasteners

Product Details: Domestic manufacturing and global sourcing of various types of nuts including hex nuts, jam nuts, square nuts, coupling nuts, wing nuts, acorn nuts, and cap nuts, with quality assurance through certified manufacturing processes.

Technical Parameters:
– ISO 9001 certified quality management system
– API Q1 compliance

Application Scenarios:
– Industrial engineering projects
– Manufacturing and assembly applications

Pros:
– Comprehensive product support options including engineering support and design a…
– Strong quality assurance with accredited laboratory testing capabilities

Cons:
– Limited information on specific product dimensions and materials
– Potential dependency on global suppliers for certain items


Industrial Nut Supplier and Manufacturer | All-Pro Fasteners

Cap Nuts – Acorn Nuts – Grainger Industrial Supply

Product Details: Cap nuts are fasteners with a closed end that cover the exposed end of a bolt or screw, providing a finished appearance and protecting the threads.

Technical Parameters:
– Material: Steel, Stainless Steel, Nylon
– Finish: Zinc Plated, Black Oxide, Plain

Application Scenarios:
– Used in automotive applications
– Common in furniture assembly and construction

Pros:
– Provides a clean and finished look
– Protects threads from damage and corrosion

Cons:
– May be more expensive than standard nuts
– Limited to specific applications where aesthetics are important

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Comparison Table

Company Product Details Pros Cons Website
Industrial Cap Nuts Manufacturer – KD Fasteners, Inc.® Cap nuts are hex nuts with a domed cap on top, used as a decorative finish to cover up studs or threaded bolts. KD Fasteners, Inc.® supplies acorn cap… – Provides a decorative finish – Available in various materials and sizes – Limited to specific thread sizes – May not be suitable for high-stress applications www.kdfasteners.com
MRL Manufacturing Corp. MRL Manufacturing Corp. produces hex nuts, round nuts, cap or acorn nuts, and internal threaded parts. – Over 20 years of experience in manufacturing – Ability to cross reference part numbers from major manufacturers – Distributors only – Limited information on specific product dimensions or tolerances www.mrl-mfg.com
Cap nut – All industrial manufacturers – DirectIndustry Cap nuts are fasteners with a domed top, used to cover the exposed end of a bolt or screw. They are available in various materials including steel, br… – Provides a decorative finish to fasteners. – Available in various materials for different environmental resistances. – May not provide as strong a hold as other types of nuts. – Limited to specific applications where aesthetics are important. www.directindustry.com
76 Cap Nut Manufacturers in 2025 – Metoree Cap nuts, also known as domed cap nuts or acorn nuts, are hexagonal nuts with a closed end, designed to conceal the end of threaded rods or bolts, pro… – Conceals sharp edges to reduce injury risk – Prevents ingress of contaminants into bolt threads – Threads may remain vulnerable to corrosion – Requires careful bolt length consideration for proper tightening us.metoree.com
Cap Nut Suppliers Cap Nut Manufacturers – Goodada Cap Nuts are specialized nuts designed to provide a finished appearance and protect the threads of a bolt or screw. They are commonly used in various… – Provides a finished look – Protects threads from damage and corrosion – May be more expensive than standard nuts – Limited to specific applications
Steel Cap Screws, Steel Bolts, Steel Nuts, Steel Acorn Nuts, Steel … Midwest Acorn Nut Company produces a variety of fasteners including Steel Cap Screws, Steel Bolts, Steel Nuts, Steel Acorn Nuts, Steel Washers, and St… – Durable and corrosion-resistant materials – Wide range of fasteners available – Not available for retail purchase – Limited to distribution through dealers midwestacornnut.com
Custom Nuts Manufacturer & Supplier KD Fasteners, Inc.® Custom nuts manufactured by KD Fasteners, Inc.® are made-to-order nuts available in various materials including Carbon Steel, Alloy Steel, Stainless S… – Wide variety of materials and nut types available – Capability to handle both large and small production runs – Specific plating and color matching may require additional specifications – Limited information on pricing and lead times
Industrial Nuts Manufacturer – KD Fasteners KD Fasteners, Inc.® offers a wide range of industrial nuts including finished hex nuts, nylon lock nuts, machine screw nuts, coupling nuts, thumb nuts… – Wide variety of nuts available for different applications. – Custom manufacturing options available to meet specific requirements. – Potentially limited availability of some specialized nuts. – Customization may lead to longer lead times. www.kdfasteners.com
Industrial Nut Supplier and Manufacturer All-Pro Fasteners Domestic manufacturing and global sourcing of various types of nuts including hex nuts, jam nuts, square nuts, coupling nuts, wing nuts, acorn nuts, a… – Comprehensive product support options including engineering support and design a… – Strong quality assurance with accredited laboratory testing ca… – Limited information on specific product dimensions and materials – Potential dependency on global suppliers for certain items
Cap Nuts – Acorn Nuts – Grainger Industrial Supply Cap nuts are fasteners with a closed end that cover the exposed end of a bolt or screw, providing a finished appearance and protecting the threads. – Provides a clean and finished look – Protects threads from damage and corrosion – May be more expensive than standard nuts – Limited to specific applications where aesthetics are important www.grainger.com

Frequently Asked Questions (FAQs)

What are cap nuts and what are they used for?

Cap nuts, also known as acorn nuts, are fasteners with a closed end that provides a finished look and protects the threads of a bolt. They are commonly used in applications where aesthetics matter, as well as in situations where safety is a concern, preventing the bolt from snagging on anything.

How do I choose the right cap nut manufacturer?

When selecting a cap nut manufacturer, consider factors like their production capacity, quality control processes, and customer reviews. It’s also helpful to check if they offer customization options and whether they adhere to industry standards, ensuring you receive a reliable product.

What materials are cap nuts typically made from?

Cap nuts can be made from various materials, including stainless steel, brass, and plastic. The choice of material often depends on the application and environment, with stainless steel being popular for its strength and corrosion resistance, while plastic is used for lightweight and non-conductive needs.

Do cap nut manufacturers offer custom sizes and designs?

Many cap nut manufacturers do offer custom sizes and designs to meet specific requirements. If you have unique specifications, it’s best to discuss your needs directly with the manufacturer to see if they can accommodate your request.

What quality control measures do cap nut manufacturers implement?

Cap nut manufacturers typically implement several quality control measures, including material inspections, dimensional checks, and performance testing. These practices ensure that the cap nuts produced meet industry standards and customer expectations for durability and reliability.