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Brass Flat Head Open-End Full Hex Body Blind Rivet Nuts

JUXIN FASTENERS supplies brass flat head open-end full hex body blind rivet nuts for OEM manufacturers requiring reusable internal threads, one-sided installation, and geometric resistance to insert rotation.

The full hexagonal body engages a compatible hexagonal mounting hole to resist rotation during mating screw installation and removal. The flat-head flange provides a bearing surface against the parent panel, while the open-end barrel permits screw extension where sufficient backside clearance is available.

Brass may be selected for its electrical conductivity, non-ferromagnetic characteristics, appearance, and suitability for certain corrosion environments. However, actual performance depends on the brass alloy, mating materials, surface condition, and service environment.

Product Features

Thread sizes: M4, M5, M6, M8, M10
Material: Brass
Product-family grip range: 0.5–3.5 mm (approx. 0.020–0.138 in)
Head: Flat head / Flanged head
Body: Full hexagonal body
End: Open end
Installation: One-sided blind installation
Mounting hole: Hexagonal hole, dimensions per approved drawing
Brass alloy and temper: Subject to confirmation
Surface finish: Subject to confirmation
OEM dimensions: Drawing-based technical review

Potential applications include electrical equipment enclosures, electronic housings, instrumentation panels, industrial machinery, control cabinets, telecommunications equipment, and fabricated sheet-metal assemblies.

For OEM quotations, contact info@juxinfasteners.com.

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Product Specification

Brass Flat Head Open-End Full Hex Body Blind Rivet Nuts – Electrical Equipment and OEM Fastening Solutions

JUXIN FASTENERS supplies brass flat head open-end full hex body blind rivet nuts for OEM manufacturers requiring reusable threaded fastening points, one-sided installation, and geometric resistance to insert rotation.

This product combines a full-length hexagonal body, flat-head flange, open-end barrel, and brass construction.

The full hex body engages a matching hexagonal mounting hole to resist rotation during mating screw installation and removal. Brass provides a different combination of electrical, magnetic, corrosion, and mechanical characteristics from aluminum, carbon steel, or stainless steel.

The correct selection depends on the application rather than material appearance alone.

Product Specifications

Product type: Brass Flat Head Open-End Full Hex Body Blind Rivet Nut

Material: Brass

Metric thread sizes: M4, M5, M6, M8, M10

Head configuration: Flat head / Flanged head

Body configuration: Full hexagonal body

End configuration: Open end

Product-family grip range: 0.5–3.5 mm

Approximate inch reference: 0.020–0.138 in

Installation method: One-sided blind installation

Mounting-hole geometry: Hexagonal hole, according to approved drawing

Brass alloy and temper: Subject to confirmation

Thread pitch and tolerance class: According to approved drawing

Hex body across-flats dimension: According to approved drawing

Hex body length: According to approved drawing

Flange diameter and thickness: According to approved drawing

Surface finish: According to approved specification

Installed backside projection: Subject to installation validation

Mechanical performance: Subject to product-specific testing

The 0.5–3.5 mm grip range applies to the specified product family. The approved range for each individual size must be confirmed against its drawing.

Engineering Features and Material Selection

Why Specify a Brass Full Hex Rivet Nut?

Brass may be selected for applications where electrical conductivity, non-ferromagnetic material behavior, corrosion characteristics, or appearance are relevant.

The full hexagonal body adds a mechanical anti-rotation feature that can be useful when a reusable threaded connection is installed in thin-walled material.

However, brass is not automatically the strongest or most corrosion-resistant material for every application.

Material selection should consider:

Required mechanical strength
Thread engagement
Electrical requirements
Parent-panel material
Mating screw material
Environmental exposure
Installation deformation
Long-term service conditions

The exact brass alloy and temper should be established through the approved material specification.

Brass vs. Aluminum Full Hex Rivet Nuts

Brass and aluminum full hex rivet nuts may have similar external geometries but different material properties.

Aluminum is often considered where reduced weight is important.

Brass may be considered where electrical conductivity, non-ferromagnetic characteristics, or particular material compatibility requirements are relevant.

Brass is generally denser than aluminum, so a similarly sized brass insert will typically weigh more.

Mechanical strength cannot be compared reliably without identifying the actual alloys and tempers.

For supplier substitution, engineers should compare:

Alloy and temper
Thread strength
Installation behavior
Spin-out resistance
Axial retention
Corrosion compatibility
Mass requirements
Operating environment

A brass insert should not be substituted for an aluminum insert solely because both have the same nominal thread size and body shape.

Electrical Conductivity and Contact Resistance

Brass is electrically conductive, but the electrical performance of an installed rivet nut assembly depends on more than the bulk material.

Contact resistance can be influenced by:

Brass alloy
Surface oxide and contamination
Surface finish
Mating screw material
Parent-panel material
Contact pressure
Installation deformation
Corrosion exposure
Temperature cycling

Where a rivet nut forms part of an electrical current path, the complete assembly must be designed and tested for its intended electrical function.

A mechanically secure threaded connection does not automatically establish a qualified electrical connection.

Protective Earthing and Bonding Applications

Brass fasteners may be considered in certain electrical equipment assemblies, but material conductivity alone does not establish suitability for protective earthing.

Protective bonding requires application-specific evaluation of the complete connection.

Relevant considerations include:

Contact resistance
Fault-current requirements
Joint integrity
Surface coatings
Corrosion exposure
Mechanical loosening
Applicable electrical equipment standards

Where protective earthing is required, the OEM must specify the appropriate verification and acceptance criteria.

This product should not be represented as a certified grounding component without supporting evidence.

Full Hex Body and Anti-Rotation Geometry

The full hexagonal body is designed to engage a corresponding hexagonal mounting hole.

When tightening torque is applied to the mating screw, the flat sides of the body interact with the surrounding hole geometry.

This provides geometric resistance to rotation.

Actual spin-out resistance depends on:

Hexagonal body dimensions
Mounting-hole geometry
Hole tolerance
Parent-material strength
Panel thickness
Installation deformation
Mating screw tightening torque

A full hex design does not establish a guaranteed spin-out torque.

Where rotational retention is critical, testing should use representative production components.

Brass Body Deformation During Installation

Blind rivet nuts are installed by deforming the body behind the parent panel.

The setting process must create adequate backside retention without damaging the internal thread or surrounding material.

Brass alloy and temper can influence the deformation behavior.

For this reason, installation parameters developed for an aluminum or steel rivet nut should not automatically be transferred to a brass insert.

Production validation should confirm:

Correct installation mandrel
Tool capacity
Setting stroke or force
Flange seating
Backside retaining-bulge formation
Internal thread condition
Axial retention
Rotational retention

The appropriate installation settings must be established for the actual brass product.

Hexagonal Mounting-Hole Accuracy

A full hex rivet nut requires a compatible hexagonal mounting hole.

The hole geometry is an essential part of the anti-rotation mechanism.

An oversized hole may reduce engagement and allow movement.

An undersized hole may prevent insertion or damage the body geometry.

The approved drawing should define:

Across-flats dimension
Dimensional tolerance
Corner geometry
Hole edge condition
Burr limits
Hole position
Parent-panel thickness

The nominal internal thread size does not establish the required hexagonal hole dimensions.

Hex Hole Manufacturing and Production Cost

Hexagonal mounting holes may be produced through appropriate punching, laser cutting, machining, or another approved process.

The selected process should achieve the required geometry and edge quality.

For OEM sourcing, the total installed cost may include:

Rivet nut unit price
Hexagonal hole preparation
Tooling
Installation cycle time
Inspection
Rework
Scrap risk
Supplier qualification

A full hex rivet nut may provide valuable anti-rotation characteristics, but the cost of manufacturing the mating hole should be included in the selection decision.

Full Hex vs. Half Hex Body

Full hex and partial hex rivet nuts both use non-round geometry to resist rotation.

Their body profiles and installation characteristics differ.

A full hex design provides hexagonal geometry along the designated body section.

A partial hex design combines hexagonal and round sections.

Selection should consider:

Required rotational retention
Hole geometry
Parent-material strength
Panel thickness
Installation process
Available backside clearance

The two designs should not be assumed interchangeable.

Full Hex vs. Knurled Round Body

Knurled round body rivet nuts use external surface features to engage the parent material.

Full hex body rivet nuts use non-round geometry in a matching hexagonal hole.

A knurled round body may be considered where round-hole manufacturing is preferred.

A full hex body may be considered where geometric anti-rotation engagement is required.

Actual mechanical performance must be verified for the selected product and installation conditions.

Brass Internal Thread Strength

An M4, M5, M6, M8, or M10 brass internal thread must be evaluated according to the actual alloy, thread geometry, and joint requirements.

A tightening torque intended for a steel nut should not automatically be applied to a brass rivet nut.

Excessive torque may cause:

Internal thread damage
Insert rotation
Parent-panel deformation
Loss of joint integrity

The allowable tightening torque should be established for the complete assembly.

Thread Engagement and Mating Screw Selection

The mating screw must provide sufficient thread engagement for the intended loading conditions.

Relevant variables include:

Thread size and pitch
Brass alloy
Mating screw material
Thread tolerance
Available engagement length
Tightening torque
Joint loading

Metric thread compatibility must be verified.

An M6 metric thread should not be substituted with a similarly sized UNC thread.

Open-End Barrel and Screw Projection

The open-end barrel allows the mating screw to extend through the insert where sufficient backside clearance is available.

This can provide flexibility in screw-length selection.

However, the screw tip must not interfere with internal components.

For electrical equipment, particular attention may be required around wiring, insulation, electronic components, and adjacent conductive structures.

Engineers should verify:

Mating screw length
Joint stack thickness
Required thread engagement
Available backside clearance
Permissible screw projection

Open-end construction does not inherently provide environmental sealing.

Flat Head Flange and Panel Support

The flat-head flange provides a bearing surface against the accessible side of the parent panel.

It supports the installed insert around the mounting hole.

The flange dimensions influence bearing contact, head projection, and axial retention.

Where a mating bracket or cover must contact the panel directly, the flange thickness should be included in the assembly stack-up.

A flat-head rivet nut is not automatically flush with the mounting surface.

Grip Range: 0.5–3.5 mm

This brass full hex rivet nut family is specified with a grip range of 0.5–3.5 mm.

The exact approved range must be confirmed for each thread size and body configuration.

Grip range refers to the parent-material thickness accommodated by the insert.

Installation outside the approved range may affect backside deformation and retention.

For applications near a grip limit, representative installation trials may be appropriate.

Pull-Out, Push-Out, and Spin-Out Testing

Different mechanical tests evaluate different failure mechanisms.

Pull-out resistance concerns axial removal under the specified test arrangement.

Push-out resistance concerns displacement in the opposite axial direction.

Spin-out resistance concerns rotation within the mounting hole.

A brass full hex rivet nut may meet one requirement without meeting another.

For OEM qualification, the test method, parent material, panel thickness, hole geometry, and installation parameters should be agreed upon.

No numerical performance rating is claimed without supporting test data.

Spin-Out Resistance Is Not Screw Threadlocking

Insert spin-out and screw loosening are separate engineering concerns.

Spin-out occurs when the rivet nut rotates within the mounting hole.

Screw loosening occurs when the mating screw loses its intended clamping condition or rotates relative to the internal thread.

The full hex body is intended to resist insert rotation.

It does not automatically prevent screw loosening under vibration.

Where vibration resistance is required, the complete joint should be evaluated.

Galvanic Corrosion and Dissimilar Metals

Brass can participate in galvanic corrosion when electrically connected to a dissimilar metal in the presence of an electrolyte.

For example, a brass insert installed in an aluminum panel may require corrosion review in humid or outdoor environments.

Relevant factors include:

Brass alloy
Parent-panel material
Mating screw material
Surface treatments
Moisture exposure
Relative exposed surface areas
Service environment

Suitable corrosion-control measures should be evaluated where necessary.

Dezincification and Brass Alloy Selection

Some brass alloys can be susceptible to dezincification in particular corrosive environments.

This is a selective corrosion mechanism involving zinc removal from the alloy.

Susceptibility depends on the brass composition and exposure conditions.

For equipment exposed to aggressive water, condensation, or other corrosive environments, the brass alloy should be selected according to the actual service conditions.

A generic brass designation does not establish dezincification resistance.

Stress Corrosion Cracking Considerations

Certain brass alloys can be susceptible to stress corrosion cracking under specific combinations of tensile stress and environment.

Relevant factors include:

Alloy composition
Residual stress
Installation deformation
Applied loading
Environmental contaminants
Service temperature

Where the operating environment creates a potential risk, material selection and qualification should address the relevant failure mechanism.

Non-Ferromagnetic Material Selection

Brass is generally non-ferromagnetic.

This may be relevant in selected instrumentation, electronic equipment, and other applications where magnetic material behavior matters.

However, the complete assembly may contain steel screws, washers, or other magnetic components.

The magnetic characteristics of the entire fastening arrangement should be evaluated where required.

Temperature Cycling and Joint Stability

Electrical and industrial equipment may experience temperature changes during operation or storage.

Different materials expand and contract at different rates.

Where brass inserts are assembled with steel screws or aluminum panels, thermal expansion differences may affect joint behavior.

Engineers should evaluate:

Operating temperature range
Thermal cycling
Joint clamping behavior
Material strength
Contact resistance, if applicable
Long-term retention

The complete assembly should be qualified for its intended operating conditions.

Surface Finish and Appearance

Brass may be supplied in different surface conditions depending on the approved product specification.

A yellow or gold-colored appearance does not establish the exact alloy or surface treatment.

Where appearance or electrical contact behavior is important, the OEM should define:

Required brass alloy
Surface finish
Appearance requirements
Coating restrictions
Inspection criteria
Corrosion requirements

No particular plating or coating is assumed for this product.

Repeated Maintenance and Thread Wear

Brass rivet nuts provide reusable internal threads.

However, repeated screw installation and removal can affect thread condition and installed retention.

For serviceable equipment, engineers should evaluate:

Expected maintenance cycles
Mating screw material
Thread engagement
Tightening torque
Thread wear
Spin-out resistance
Parent-panel condition

Where frequent servicing is required, the selected insert should be qualified for the expected service conditions.

Industrial Applications and OEM Fastening Solutions

Electrical Equipment and Control Cabinets

Potential applications include equipment housings, fabricated mounting panels, control cabinets, and selected serviceable components.

Brass may be considered where material conductivity or non-ferromagnetic behavior is relevant.

Electrical bonding, grounding, and current-carrying requirements must be verified separately.

Power Distribution Equipment

Potential applications include selected mechanical mounting connections in fabricated equipment structures.

Where the insert forms part of an electrical circuit or protective bonding system, application-specific electrical and mechanical testing is required.

Instrumentation and Measurement Equipment

Brass full hex rivet nuts may be considered for suitable instrument housings, mounting panels, and serviceable brackets.

Non-ferromagnetic material behavior may be relevant in certain applications.

The complete assembly must be reviewed for the actual instrumentation requirements.

Telecommunications and Electronic Equipment

Potential applications include equipment enclosures, fabricated panels, and removable covers.

The open-end configuration requires verification of screw projection and internal component clearance.

Industrial Machinery and Automation

Potential applications include equipment housings, maintenance panels, mounting brackets, and fabricated structures.

The full hex body may be useful where resistance to insert rotation is important.

HVAC and Appliance Equipment

Potential applications include equipment cabinets, fabricated sheet-metal components, and selected mounting assemblies.

The suitability of brass should be assessed against mechanical loading, environmental exposure, and production cost.

Architectural and Decorative Metalwork

Brass rivet nuts may be considered where appearance and material compatibility are relevant.

However, the required surface finish, corrosion exposure, and mechanical performance must be specified.

General OEM Sheet-Metal Fabrication

Potential applications include hollow sections, fabricated cabinets, removable panels, and threaded mounting points.

The selected insert should be validated for the actual parent material and expected service loads.

Engineering Selection Checklist

Before approving a brass full hex body blind rivet nut, confirm:

Required metric thread size
Brass alloy and temper
Parent material and panel thickness
Approved grip range for the selected size
Hexagonal hole across-flats dimension
Hole tolerance and corner geometry
Hole edge quality
Flange diameter and thickness
Body dimensions
Installed backside projection
Mating screw material and length
Required thread engagement
Installation tool compatibility
Setting stroke or force
Required pull-out and push-out resistance
Required spin-out resistance
Tightening torque requirements
Electrical contact requirements, if applicable
Galvanic corrosion compatibility
Dezincification considerations, if applicable
Stress corrosion cracking considerations, if applicable
Environmental exposure
Inspection and traceability requirements

Engineering Standards and Technical Verification

Product selection should be based on the approved dimensional drawing and the requirements of the intended assembly.

Applicable ISO metric thread standards may include ISO 261 and ISO 965 where relevant.

The brass material specification should identify the appropriate alloy and condition using an applicable ASTM, EN, or other internationally recognized material designation.

The exact material standard must be confirmed for the selected product.

Where electrical equipment requirements apply, relevant IEC or EN standards should be identified by the OEM.

Where UNC or UNF threads are requested, applicable ASME B1.1 requirements should be identified separately.

Metric and UNC/UNF thread systems are not directly interchangeable.

Inch values shown as conversions are dimensional references only and do not establish availability of corresponding inch-threaded products.

No specific certification, electrical rating, mechanical performance value, or standard conformity should be assumed without supporting documentation.

OEM Procurement and Supplier Qualification

For purchasing managers and supplier development teams, brass full hex rivet nuts require material and dimensional verification before supplier substitution.

Two products described as M6 brass full hex rivet nuts may differ in:

Brass alloy and temper
Hex body dimensions
Flange dimensions
Mounting-hole requirements
Grip range
Installation parameters
Thread strength
Surface finish
Mechanical retention performance

These differences may affect assembly compatibility, electrical behavior, and joint reliability.

Before approving an alternative supplier, procurement teams should compare complete drawings, material specifications, and representative installation test results.

For recurring OEM programs, inspection criteria, traceability, packaging requirements, annual demand, and delivery expectations should be established during sourcing.

Custom OEM Brass Full Hex Rivet Nut RFQ Requirements

Please provide:

2D drawing or 3D CAD model
Required metric thread size and pitch
Brass alloy and temper
Parent material and panel thickness
Hexagonal hole across-flats dimension and tolerance
Hole corner geometry
Flange diameter and thickness
Full hex body dimensions
Approved grip range
Available backside clearance
Mating screw material and length
Installation method and tooling requirements
Required axial and rotational retention
Tightening torque requirements
Electrical requirements, if applicable
Surface finish and corrosion requirements
Inspection and traceability requirements
Prototype or production quantity
Estimated annual demand
Delivery destination

JUXIN FASTENERS supports drawing-based technical reviews and OEM sourcing discussions for brass flat head open-end full hex body blind rivet nuts and related custom threaded fastening components.

Final dimensions, brass alloy availability, installation compatibility, mechanical performance, and inspection requirements should be confirmed before production approval.