Custom Blind Rivet Nuts, Studs & Threaded Inserts for OEM Applications

Custom Blind Rivet Nuts, Studs & Threaded Inserts for OEM Applications

Standard blind rivet nuts and studs are effective fastening solutions for many sheet-metal assemblies. 

However, some OEM applications require features that are not available in a conventional catalog fastener.

An automotive enclosure may require a sealed threaded mounting point. A thin aluminum bracket may need greater resistance to rotation. 

A plastic housing may require a larger bearing surface or a specially designed threaded insert. An industrial assembly may need an unusual grip range, head geometry or exposed thread length.

In these situations, a custom fastening component can be evaluated against the actual assembly rather than selected by nominal thread size alone.

Custom blind rivet nuts, blind rivet studs and application-specific threaded inserts allow engineers to address requirements involving:

• Internal or external thread configuration

• Parent material and wall thickness

• One-sided installation access

• Head and flange geometry

• Anti-rotation features

• Grip range and deformation behavior

• Axial retention and tightening loads

• Environmental sealing

• Corrosion protection

• Assembly tooling and production repeatability

JUXIN FASTENERS supplies industrial blind rivet nuts, blind rivet studs and selected customer-specific threaded fastening components for OEM and industrial procurement.

We welcome drawing-based inquiries where a standard product does not adequately satisfy the customer's engineering or manufacturing requirements.

What Are Custom Blind Rivet Nuts and Studs?

A blind rivet nut is a fastener that creates an internal threaded mounting point in a compatible workpiece.

A blind rivet stud provides an external threaded mounting point.

In conventional blind-installed designs, the fastener is inserted into a prepared hole from one accessible side. 

A suitable installation tool deforms a designated section of the fastener body to retain it in the parent material.

This installation principle is especially useful for thin sheet metal, hollow sections and structures where rear-side access is restricted.

A custom configuration may modify the fastener's geometry, material, coating or installation characteristics.

For example, the engineering drawing may specify a larger flange, hexagonal body, special thread length or closed-end construction.

However, not every custom threaded insert is a blind-installed rivet nut.

Molded-in inserts, double-flange inserts, compression limiters and certain specialty retention components may require different manufacturing and installation processes.

These product families should be evaluated separately according to their actual functions.

When Is a Custom Blind Rivet Nut Necessary?

A custom blind rivet nut may be appropriate when a standard catalog configuration cannot satisfy one or more critical design requirements.

Typical situations include:

• An unusual panel thickness or grip range

• Restricted space around the mounting hole

• Higher anti-rotation requirements

• A special head or flange diameter

• A defined sealing interface

• A nonstandard body length

• A customer-specific material or coating

• A special installation sequence

• A unique mating-component geometry

Customization should solve a measurable engineering or production problem.

It should not be introduced solely because a nonstandard design appears more sophisticated.

Where a standard rivet nut meets the functional requirements, it may offer a simpler procurement and manufacturing route.

Understanding the Main Custom Fastener Families

The appropriate product depends on the substrate, load direction, access conditions and assembly process.

Custom Blind Rivet Nuts for Automotive Applications

Automotive assemblies often combine steel, aluminum, coated sheet metal, molded polymers and enclosed structures.

These material combinations create different fastening challenges.

A mounting point used in a thin steel bracket may require a different design from one installed in an aluminum enclosure or a polymer component.

Potential automotive applications include:

• Body-related brackets

• Interior mounting assemblies

• Electrical component housings

• Cable and hose supports

• Selected seat-related components

• Equipment covers

• Lightweight structural accessories

• Enclosed metal assemblies

For automotive OEM and Tier-1/Tier-2 programs, the fastening design should reflect the specific assembly requirements.

Important factors include vibration, corrosion exposure, joint loading, installation accessibility and production repeatability.

A fastener suitable for an interior trim bracket should not automatically be approved for a highly loaded or safety-critical attachment.

Such applications require the OEM's defined validation and approval procedures.

Anti-Rotation Blind Rivet Nuts

One of the most important performance requirements for a blind rivet nut is resistance to rotation within the parent material.

When a mating screw is tightened, torque is transmitted through the threaded connection.

If the rivet nut rotates inside the installation hole, the assembly may fail to reach its intended tightening condition.

Several body configurations can be considered.

Hexagonal Body Rivet Nuts

A hexagonal body engages a compatible hexagonal hole.

This provides a geometric anti-rotation mechanism rather than relying exclusively on friction between the body and the workpiece.

Hexagonal designs can be useful where relatively high tightening torque is required.

However, they also require suitable hole manufacturing and dimensional control.

A hex-body rivet nut should not be installed into an ordinary round hole unless the specific design has been engineered and approved for that condition.

Knurled Body Rivet Nuts

Knurled or ribbed body features may improve mechanical engagement with compatible substrates.

Their effectiveness depends on:

• Parent material hardness

• Hole diameter

• Material thickness

• Knurl geometry

• Installation deformation

• Applied torque

Knurling is not a universal substitute for hexagonal geometry.

The actual torque resistance should be evaluated in the intended workpiece.

Under-Head Ribs and Special Features

Some custom designs use ribs, serrations or other features beneath the head.

These may contribute to mechanical engagement, but their performance depends on the substrate and installation conditions.

For relatively soft materials, aggressive features may also cause local damage.

The correct design balances retention with acceptable substrate deformation.

Sealed Blind Rivet Nuts for Water, Dust and Fluid Exposure

Some industrial assemblies require a threaded mounting point while limiting the passage of moisture, dust or other contaminants through the fastening location.

A sealed blind rivet nut may incorporate a sealing element beneath the head.

A closed-end body may also be considered when the threaded cavity should not remain open through the fastener.

These are related but distinct design features.

Under-Head Sealing

An elastomeric sealing element may be positioned between the fastener head and the parent material.

Potential design options include:

• Captive sealing rings

• Seals positioned in an under-head groove

• Customer-specific integrated sealing arrangements

A captive seal can reduce the risk of losing a separate sealing component during handling.

It may also support more consistent positioning during assembly.

However, the sealing performance depends on the complete interface.

Closed-End Construction

A closed-end rivet nut has a closed rear body rather than an open passage through the threaded cavity.

This can help separate the threaded region from the opposite side of the workpiece.

Nevertheless, a closed-end fastener does not automatically seal the interface between its head and the installation hole.

Sealing Performance Must Be Validated

For a sealing application, engineers should consider:

• Parent material surface condition

• Head seating

• Seal geometry

• Seal material

• Compression during installation

• Temperature range

• Fluid or chemical compatibility

• Pressure differential

• Joint movement

• Corrosion

• Long-term aging

Where an ingress protection requirement applies, the complete enclosure or assembly must be tested against the appropriate standard and test conditions.

ISO 20653 may be relevant for road-vehicle electrical equipment enclosure protection, while IEC 60529 is commonly relevant to enclosure IP classifications.

An IP rating should not be assigned to an individual rivet nut merely because it includes a seal.

Likewise, resistance to water ingress does not establish gas-tightness or suitability for pressurized fluid containment.

Those performance requirements must be defined and verified separately.

Large-Flange Blind Rivet Nuts for Soft and Lightweight Materials

The bearing area beneath a rivet nut head can be important when the parent material is relatively soft or thin.

A larger flange may distribute contact load over a greater area.

This can be useful for selected:

• Aluminum panels

• Thin sheet-metal components

• Polymer housings

• Lightweight assemblies

• Customer-specific brackets

However, increasing flange diameter does not automatically increase the joint's allowable load.

The performance also depends on the substrate, hole geometry, body deformation and loading direction.

Design Trade-Offs

A large flange may improve bearing contact, but it also requires more installation space.

Engineers should check:

• Clearance around the mounting point

• Distance from adjacent components

• Local panel stiffness

• Flange seating

• Surface flatness

• Assembly access

For OEM projects, flange diameter should be selected according to the actual joint design rather than maximized without regard to surrounding geometry.

Custom Threaded Inserts for Plastic Components

Plastic components require different engineering assumptions from metal sheet.

Polymer materials may exhibit creep, stress relaxation and temperature-dependent mechanical behavior.

A fastening system that performs well in steel sheet may not provide the same retention in a molded polymer housing.

For selected plastic applications, a specially designed threaded insert may be more appropriate than a conventional blind rivet nut.

Potential design features include:

• Large bearing flanges

• Knurled sections

• Undercuts

• Ribs

• Double-flange geometry

• Molded-in retention features

• Application-specific body lengths

The correct installation method depends on the insert family.

A molded-in insert is positioned during molding.

A heat-installed insert uses a different installation process.

A blind-installed rivet nut requires suitable access and controlled deformation of its retaining body.

These methods should not be described as interchangeable.

Polymer Design Considerations

For plastic components, engineers should define:

• Polymer type and grade

• Glass-fiber reinforcement, if present

• Wall thickness

• Hole or boss geometry

• Installation method

• Operating temperature

• Moisture exposure

• Expected tightening torque

• Pull-out requirements

• Repeated assembly requirements

For glass-filled polymers, fiber orientation and local molded geometry may influence mechanical performance.

For thermoplastics, elevated temperature and sustained loading can contribute to stress relaxation.

These effects should be considered when selecting the insert and designing the mating joint.

Double-Flange and Application-Specific Threaded Inserts

Some OEM components require inserts with special flange arrangements, controlled lengths or mechanical retention features.

Double-flange designs may be evaluated for selected molded or assembled components where the geometry provides a functional advantage.

Potential objectives include:

• Positioning the insert

• Controlling axial movement

• Providing bearing surfaces

• Improving retention

• Integrating with molded geometry

• Supporting repeatable assembly

However, double-flange construction alone does not guarantee improved torque resistance or pull-out strength.

The actual performance depends on the complete design.

Custom Deformation Zones and Dimensional Control

A blind rivet nut's deformable section is fundamental to its installation behavior.

For a custom design, the deformation zone may be adjusted to suit a particular grip range or parent-material configuration.

Relevant characteristics include:

• Body length

• Deformation-zone geometry

• Wall thickness

• Head dimensions

• Threaded section

• Material properties

A change in body length can alter installation behavior.

Therefore, a custom length should not be evaluated independently from the intended setting process.

Dimensional Tolerances

Some precision OEM components require tightly controlled lengths or positioning features.

However, a specific tolerance such as ±0.05 mm cannot be assumed achievable for every cold-formed or deformable fastener design.

The required tolerance should be defined on the customer drawing and evaluated against manufacturing feasibility, measurement method and functional need.

Tolerances should be assigned according to the dimensions that affect assembly performance.

Unnecessarily tight tolerances can increase manufacturing cost without improving the finished product.

Custom Blind Rivet Studs

Not every OEM application requires an internal thread.

Where a fixed external thread is needed, a blind rivet stud may provide a more suitable mounting interface.

Potential applications include:

• Mounting brackets

• Equipment supports

• Sheet-metal housings

• Electrical cabinets

• Automotive accessories

• Industrial machinery covers

A custom blind rivet stud may require changes to:

• External thread size

• Thread pitch

• Exposed stud length

• Head geometry

• Rivet body geometry

• Material

• Coating

• Grip range

The stud must be evaluated for both installation retention and the loads applied during subsequent component assembly.

Material Selection for Custom Rivet Nuts and Studs

Material choice affects manufacturing feasibility, mechanical properties, corrosion behavior and installation.

Carbon Steel

Carbon steel is commonly considered for threaded fastening components requiring defined mechanical performance.

The appropriate grade depends on the product design and customer requirements.

Stainless Steel

Stainless steel may be selected for corrosion-sensitive applications.

However, different stainless steel grades have different mechanical and corrosion characteristics.

The required grade must be specified.

Aluminum Assemblies

Where steel or stainless steel fasteners are installed in aluminum components, the joint should be evaluated for substrate deformation and galvanic corrosion.

Plastic and Composite Assemblies

Metal inserts used in polymer components require attention to installation stresses, local geometry and long-term substrate behavior.

Material compatibility should be evaluated as a system rather than by fastener material alone.

Zinc-Nickel and Other Surface Treatments

Surface treatment can be an important part of an OEM fastening specification.

For suitable steel components, zinc-nickel plating may be considered where the customer requires a particular corrosion-protection system.

Other zinc-based finishes or customer-defined treatments may also be relevant.

The selection should consider:

• Exposure environment

• Base material

• Mating components

• Coating thickness

• Thread fit

• Installation deformation

• Corrosion testing requirements

• Applicable customer specifications

For applicable electroplated threaded fasteners, ISO 4042 may be relevant.

The complete coating system and required performance should be specified rather than relying only on the phrase "zinc-nickel plated."

Installation Engineering: Why Custom Geometry Requires Process Review

A custom rivet nut may appear dimensionally correct but still fail during installation.

The setting process must be compatible with the fastener and parent material.

Important considerations include:

• Hole diameter and tolerance

• Hole shape

• Burr condition

• Parent material thickness

• Grip range

• Setting tool

• Installation stroke or force

• Tool access

• Head seating

• Blind-side clearance

• Installed fastener orientation

For a hex-body rivet nut, the manufacturing process must produce the required hole geometry.

For a sealed rivet nut, the installation must preserve the intended sealing interface.

For a thin or soft substrate, the setting process must avoid unacceptable deformation.

Production-Line Repeatability

Manufacturing engineers and production managers should evaluate the complete installation cycle.

This includes part feeding, tool positioning, setting, inspection and subsequent screw assembly.

A custom feature is only valuable when it can be manufactured and installed consistently.

For production planning, relevant questions include:

• Can the fastener be oriented reliably?

• Is the setting tool compatible with the assembly?

• Can the operator or machine access the hole?

• Is the installation process repeatable?

• How will incorrect setting be detected?

• What happens if a defective fastener must be removed?

• Can the mating screw be installed without rotating the rivet nut?

These questions connect fastener design directly to production cost and quality.

Mechanical Performance: Pull-Out, Torque-Out and Thread Strength

Several different failure mechanisms must be considered.

Pull-Out Failure

The installed insert may be displaced axially from the parent material.

Performance depends on the fastener geometry, substrate and installation conditions.

Torque-Out Failure

The rivet nut may rotate in the installation hole when tightening or loosening a screw.

Hexagonal or knurled designs may improve resistance when used with compatible substrates and hole geometries.

Thread Stripping

The internal thread or mating screw thread may fail before the installed rivet nut pulls out or rotates.

Thread strength must therefore be considered separately from substrate retention.

Parent Material Failure

The surrounding sheet or plastic may crack, deform or tear even when the threaded fastener itself remains intact.

Seal Failure

A sealed fastener may retain mechanical strength while allowing leakage at the sealing interface.

Mechanical retention and sealing performance require separate validation.

Why These Distinctions Matter

A product with high pull-out resistance is not automatically suitable for high tightening torque.

Likewise, a sealed design does not automatically provide high mechanical retention.

OEM drawings and validation plans should identify the actual functional requirements.

Custom Rivet Nuts for EV and Electrical Equipment

Electric vehicle and electrical equipment assemblies may contain thin metal panels, aluminum housings and mixed-material structures.

Potential fastening applications include:

• Equipment enclosures

• Cable-management brackets

• Mounting rails

• Electrical accessory supports

• Service panels

• Mechanical covers

Where the fastener penetrates an enclosure wall, sealing and corrosion requirements may become important.

For electrical applications, a metallic fastener should not automatically be treated as an approved grounding or protective-bonding connection.

The electrical function must be validated at assembly level.

For battery-related applications, fastening selection must follow the actual OEM safety and enclosure requirements.

Industrial Machinery, HVAC and Automation

Industrial equipment often requires threaded mounting points in fabricated housings, covers and brackets.

Potential applications include:

• Machine guards

• Automation equipment

• Control cabinets

• HVAC housings

• Refrigeration equipment

• Mechanical mounting brackets

• Industrial access panels

Custom blind rivet nuts may be useful when a standard fastener does not match the available material thickness or installation space.

A sealed or corrosion-resistant configuration may be considered when the equipment operates in moisture-prone environments.

Medical Equipment and Precision Housings

Selected medical equipment housings and instrumentation assemblies may use threaded inserts in sheet metal or molded components.

The application may require defined material, dimensional, cleanliness or documentation requirements.

Suitability for a medical application must be determined according to the customer's specific product, regulatory obligations and qualification process.

A generic industrial threaded insert should not be assumed approved for implantable or safety-critical medical use.

Fluid-Related Equipment

Fluid-handling equipment may require threaded mounting points exposed to moisture or process media.

Closed-end or sealed configurations can be evaluated for suitable housings and mounting interfaces.

However, a sealed rivet nut should not automatically be used as a pressure-containing fitting.

The complete assembly must be evaluated for the required pressure, temperature, media compatibility and leakage performance.

International Standards and Customer Drawings

Custom blind rivet nuts and studs may involve several different technical requirements.

No single international standard covers every custom body geometry, sealing arrangement and installation process.

Depending on the design, relevant references may include:

• ISO 965 for applicable metric thread tolerances

• ISO 4042 for applicable electroplated threaded fasteners

• ISO 3506 requirements where relevant to specified stainless steel threaded components

• ASME B1.1 for applicable Unified inch screw threads

• IEC 60529 or ISO 20653 where relevant to the complete enclosure's specified ingress-protection testing

The customer drawing should define requirements not covered by the selected standards.

Metric and Inch Thread Systems

Metric and inch-thread configurations must be identified separately.

M6 × 1.0 and 1/4-20 UNC are different thread specifications.

Their nominal diameters may appear relatively close, but they are not directly interchangeable.

A dimensional conversion is not proof of thread compatibility.

UNC, UNF, BSW and BSF thread systems must also be distinguished.

Only the thread configurations actually supported and verified for the product should be offered as available options.

Quality Control for Custom OEM Fasteners

Quality requirements should be established according to the product function and customer specification.

Potential inspection characteristics include:

• Thread dimensions

• Head diameter

• Flange thickness

• Body diameter

• Body length

• Grip-range compatibility

• Deformation-zone geometry

• Material specification

• Surface treatment

• Seal presence and positioning

• Visual condition

• Installed torque resistance

• Installed pull-out resistance

• Customer-defined functional tests

Not every test is required for every component.

The appropriate inspection plan depends on the approved drawing and application.

Automotive Qualification Requirements

Automotive OEM and Tier-1 programs may require project-specific documentation or production approval activities.

Where PPAP or other customer-defined submissions are required, their scope, submission level and availability should be confirmed before accepting the order.

No particular certification, testing capability or approval status should be assumed without verification.

Supplier Development and OEM Procurement Considerations

For procurement and supplier-development teams, a custom fastener must satisfy both engineering requirements and commercial constraints.

Relevant sourcing considerations include:

• Manufacturing feasibility

• Material availability

• Tooling requirements

• Sample requirements

• MOQ

• Unit price

• Inspection scope

• Production lead time

• Surface-treatment requirements

• Packaging

• Drawing revision control

• Supply continuity

A custom fastener may involve different tooling and production costs from a standard catalog item.

The lowest quoted unit price may not provide the lowest total cost if the product creates installation problems, rework or inconsistent assembly performance.

Standard Part or Custom Part?

Before approving a custom design, the purchasing and engineering teams should compare it with suitable standard alternatives.

A practical decision framework is:

This comparison helps prevent unnecessary customization while identifying genuine engineering requirements.

Preparing a Custom Blind Rivet Nut or Stud RFQ

A complete RFQ reduces technical clarification and helps the supplier evaluate manufacturing feasibility.

For a drawing-based inquiry, provide:

Engineering Information

• 2D engineering drawing

• Available 3D CAD model

• Internal or external thread specification

• Head and body dimensions

• Parent material

• Material thickness

• Installation hole geometry

• Grip range

• Material grade

• Surface treatment

• Functional application

Performance Requirements

• Tightening torque

• Torque-out resistance

• Pull-out resistance

• Relevant service loads

• Corrosion exposure

• Temperature range

• Sealing requirements

• Inspection and validation requirements

Manufacturing Information

• Installation method

• Setting equipment, if defined

• Assembly sequence

• Annual production volume

• Order quantity

• Packaging requirements

• Required delivery schedule

If a requirement is not yet defined, identify it as open for engineering review rather than assuming a value.

From Drawing Review to Production Supply

A practical OEM sourcing process can be organized around several stages.

Technical Review

Confirm the application, drawing, parent material and functional requirements.

Manufacturing Feasibility

Evaluate the proposed geometry, material, tooling and production method.

Quotation

Clarify price, MOQ, tooling cost where applicable, sample arrangements and lead time.

Sample Evaluation

Where required, review samples and validate fit, installation and functional performance.

Production Approval

Confirm the approved drawing revision, quality requirements and commercial conditions.

Batch Supply

Coordinate production, inspection, packaging and delivery according to the agreed requirements.

The exact process depends on the customer's project and supplier capabilities.

Frequently Asked Questions

What can be customized on a blind rivet nut?

Potential features include head diameter, flange geometry, body configuration, length, grip range, thread specification, material and surface treatment. 

Feasibility depends on the design and manufacturing process.

What is the difference between a custom blind rivet nut and a threaded insert for plastic?

A blind rivet nut typically uses a mechanical blind-setting process. 

A plastic threaded insert may be molded in, heat-installed, press-installed or retained by another application-specific method.

Are hex-body rivet nuts better than round-body rivet nuts?

Hex-body designs can provide geometric anti-rotation engagement when installed in compatible hexagonal holes. 

The correct choice depends on hole manufacturing, substrate and performance requirements.

Can a blind rivet nut provide a watertight connection?

A suitably designed sealed fastener may contribute to a watertight assembly, but the complete joint must be tested under the specified conditions.

Is a closed-end rivet nut automatically waterproof?

No. A closed rear cavity does not automatically seal the head-to-panel interface.

Can custom rivet nuts be installed in plastic?

Some application-specific designs may be suitable for compatible plastic components.

 Installation and retention must be validated for the actual polymer and geometry.

Can zinc-nickel plating be specified?

Zinc-nickel plating can be evaluated for suitable products where the required coating specification and manufacturing feasibility are confirmed.

Are custom blind rivet studs available?

JUXIN FASTENERS welcomes inquiries for customer-specific blind rivet stud geometries, materials and surface treatments, subject to technical and commercial review.

Does a custom rivet nut require new tooling?

Not always. Tooling requirements depend on the requested geometry, manufacturing route and available production methods.

What determines MOQ and lead time?

MOQ and lead time depend on material, geometry, tooling, surface treatment, production quantity and inspection requirements.

Can JUXIN FASTENERS review multiple custom fastener drawings in one RFQ?

Yes. Customers may submit multiple related part numbers for technical and commercial evaluation.

What should I provide for a custom fastener quotation?

Provide drawings, material specifications, dimensions, thread requirements, installation details, performance requirements, quantities and expected delivery schedule.

JUXIN FASTENERS: Custom Blind Rivet Nuts and OEM Threaded Fastening Solutions

JUXIN FASTENERS supplies standard and customer-specific industrial fastening products for international OEM and industrial purchasing requirements.

Relevant product families include:

• Custom Blind Rivet Nuts

• Custom Blind Rivet Studs

• Closed-End Rivet Nuts

• Hexagonal Body Rivet Nuts

• Knurled Rivet Nuts

• Large-Flange Rivet Nuts

• Selected Sealed Fastening Configurations

• Threaded Inserts

• Self-Clinching Fasteners

• Weld Nuts and Weld Studs

• Custom Threaded Components

Our team welcomes technical inquiries involving unusual dimensions, special body geometries, installation constraints and customer-specific material or surface-treatment requirements.

Each project is reviewed according to its engineering drawing, functional requirements and manufacturing feasibility.

Request a Quote for Custom Blind Rivet Nuts and Studs

Are you developing an automotive, electrical, industrial or plastic-component assembly that requires a nonstandard threaded fastening solution?

JUXIN FASTENERS welcomes inquiries from OEM manufacturers, Tier-1/Tier-2 suppliers, engineering teams, production managers, procurement specialists and supplier-development professionals.

Whether your project requires a special flange, anti-rotation body, closed-end configuration, sealing interface or custom thread geometry, send us the technical details for evaluation.

For faster review, please include:

• Your engineering drawing

• 2D/3D files where available

• Required material and surface treatment

• Thread specification

• Parent material and thickness

• Installation hole and assembly method

• Mechanical or sealing performance requirements

• Estimated order quantity and annual demand

• Inspection and packaging requirements

We can review the submitted requirements and discuss suitable fastening configurations, customization feasibility and quotation arrangements.

Company: JUXIN FASTENERS

Website: www.juxinfasteners.com

Email: info@juxinfasteners.com

Send your drawings, samples or OEM RFQ to JUXIN FASTENERS for custom blind rivet nuts, blind rivet studs and engineered threaded fastening components.