Steel High Flat Head Open-End Knurled Body Blind Rivet Nut M6

Product Name: Steel High Flat Head Open-End Knurled Body Blind Rivet Nut

Part Number: JX-F2.5-M6-R-ST

Thread Size: M6

Material: Steel

Grip Range: 0.5–2.5 mm (approximately 0.020–0.098 in)

Head Type: High Flat Head

Body Type: Knurled Round Body

End Configuration: Open End

Surface Treatment: Color Zinc or RoHS Blue Zinc

Installation Method: One-Sided Blind Installation

Mounting Hole: Round hole, dimensions according to the approved drawing

Thread Pitch and Tolerance: According to the approved drawing

Material Grade and Coating Requirements: According to the approved specification

Mechanical Retention: To be validated in the actual parent material

Product Overview

JUXIN FASTENERS supplies M6 steel high flat head open-end knurled body blind rivet nuts for automotive OEM production, electric vehicle components, and industrial sheet-metal assemblies.

Part number JX-F2.5-M6-R-ST combines a high flat-head flange, an externally knurled round body, and an open-end internal thread. It is intended to provide a permanent threaded insert in thin panels where rear-side access is limited or conventional tapped threads are unsuitable.

The 0.5–2.5 mm grip range supports engineering evaluation across selected thin-sheet applications. Final installation dimensions and mechanical requirements must be confirmed using the approved product drawing and representative assembly testing.

Automotive and Electric Vehicle Applications

Automotive manufacturers require threaded fastening solutions that support efficient assembly, consistent installation, and dependable service access.

M6 knurled blind rivet nuts are relevant to vehicle assemblies where a threaded attachment point must be installed from one side of a panel.

Potential applications include:

• Automotive body and sheet-metal brackets

• Electric vehicle equipment mounting panels

• EV battery system accessory brackets

• Battery management system equipment housings

• Automotive electrical enclosure mounting points

• Vehicle interior structural support brackets

• Dashboard and instrument support assemblies

• Automotive HVAC equipment brackets

• Commercial vehicle equipment housings

• Removable inspection and service panels

• Thermal management component brackets

• Selected automotive underbody equipment supports

Application suitability depends on the actual parent material, joint loading, installation conditions, and environmental requirements.

For EV battery-related assemblies, these rivet nuts must not be assumed to provide sealing, electrical isolation, or crash-load performance without separate engineering validation.

Knurled Round Body: Anti-Rotation Engineering

The external knurling is a key functional feature of this product.

During installation, the knurled surface can engage the wall of the prepared mounting hole. This engagement helps resist rotation when the mating screw is tightened or removed.

For automotive production, insert spin-out is a significant concern because an insert that rotates inside a closed panel can be difficult to repair.

Knurled body performance depends on several interacting factors:

• Knurl geometry and manufacturing consistency

• Mounting-hole diameter and tolerance

• Parent-panel material and hardness

• Panel thickness

• Installation force or stroke

• Degree of backside deformation

• Mating screw tightening conditions

A knurled round body generally provides greater rotational engagement than a comparable smooth round body in suitable materials, but the improvement must be verified for the actual installation.

The knurling does not function as a thread-locking device. Resistance to insert spin-out and resistance to mating screw loosening are separate engineering requirements.

Round-Hole Installation and Automotive Production Efficiency

One potential advantage of a knurled round-body rivet nut is its compatibility with a correctly dimensioned round mounting hole.

Round holes may be produced by drilling, punching, or other approved sheet-metal processes.

Compared with a hexagonal-body rivet nut requiring a shaped hole, a round-body design may simplify hole preparation when the assembly already uses circular openings.

However, round-hole compatibility alone does not guarantee equivalent rotational retention.

Automotive engineers should compare hole-production cost, required spin-out resistance, installation cycle time, and assembly performance before selecting a body style.

The approved hole diameter must be established from the actual JX-F2.5-M6-R-ST drawing. Hole dimensions from another manufacturer's M6 rivet nut should not be copied without verification.

High Flat Head: Flange Support and Joint Geometry

The high flat-head flange provides a bearing surface on the accessible side of the panel.

This geometry may help distribute front-side contact forces and support consistent seating during installation.

The flange also creates a defined projection above the panel surface.

For automotive design engineers, the critical considerations include:

• Flange diameter and thickness

• Clearance beneath the mating component

• Local panel deformation

• Contact between the mating component and flange

• Installation-tool nosepiece clearance

• Joint clamping geometry

A high flat-head rivet nut should not be treated as a flush-mounted insert.

The flange must be included in the assembly stack-up calculation.

Where a flush surface is essential, a thin-head or countersunk configuration may be more appropriate, subject to the relevant mechanical requirements.

Open-End Design and Screw Engagement

The open-end configuration allows the mating screw to extend through the threaded insert, provided that the assembly has sufficient clearance behind the panel.

This can be useful where screw length, thread engagement, and installation access must be coordinated.

For automotive applications, engineers should verify:

• Actual internal thread specification

• Mating screw thread compatibility

• Required thread engagement

• Screw projection behind the insert

• Clearance to adjacent components

• Risk of interference during installation or service

An open-end rivet nut does not create a sealed threaded connection.

Where water, dust, pressure, or fluid containment is required, the complete joint must incorporate a validated sealing solution.

M6 Thread Selection and International Compatibility

The supplied nominal thread size is M6.

M6 × 1.0 is a common ISO metric coarse-thread designation, but the actual thread pitch and tolerance must be confirmed from the approved product drawing.

Relevant metric thread references include ISO 261 and ISO 965.

The M6 nominal diameter is approximately 0.236 in.

This inch conversion is provided for reference only.

M6 metric threads are not interchangeable with 1/4-20 UNC, 1/4-28 UNF, or other Unified thread forms.

For North American automotive OEM purchasing, the thread designation must be stated clearly on drawings and purchase orders to prevent metric and inch-thread substitutions.

Grip Range: 0.5–2.5 mm

The specified grip range identifies the parent-panel thickness range for the supplied product configuration.

For JX-F2.5-M6-R-ST, the stated grip range is 0.5–2.5 mm.

The selected installation must be evaluated within this range.

Panel thickness influences the deformation of the rivet nut body and the resulting backside retention.

If the panel is too thin or too thick for the selected configuration, the insert may not deform or seat as intended.

For production approval, the parent material and actual panel thickness should be included in installation trials.

Where a painted, coated, or multilayer assembly is involved, engineers should determine which material layers are actually included in the effective grip thickness.

Installation Process for Automotive Assembly Lines

The rivet nut is installed using compatible blind rivet nut setting equipment.

A typical installation process involves preparing the approved mounting hole, positioning the insert, engaging the installation mandrel, deforming the body behind the panel, and releasing the tool.

For high-volume automotive production, the installation process should be established using representative production components.

Critical process variables include:

• Mounting-hole diameter and quality

• Parent-panel thickness

• Tool alignment

• Mandrel condition

• Setting force or stroke

• Flange seating

• Backside deformation

• Thread condition after installation

• Retention consistency between production batches

Under-setting may produce inadequate retention.

Over-setting may damage the internal thread, distort the flange, or deform the parent panel.

The correct installation parameters must be determined from the actual insert geometry, tooling, and parent material.

Automated and High-Volume Assembly Considerations

For automotive OEM and Tier 1 production, component performance and assembly-line compatibility should be evaluated together.

When considering automated or semi-automated installation, procurement and manufacturing engineers should review:

• Part orientation and feeding requirements

• Consistency of external dimensions

• Tool access and alignment

• Hole-position tolerance

• Installation cycle-time requirements

• Process monitoring

• Thread inspection

• Traceability requirements

• Handling of rejected or improperly installed parts

Compatibility with a specific automatic feeding or setting system must be verified before production integration.

No particular automation capability or production rate is assumed for this part number.

Mechanical Performance: What OEM Engineers Should Test

The mechanical performance of a blind rivet nut cannot be determined from nominal thread size alone.

For automotive applications, three important retention characteristics should be evaluated separately.

Spin-Out Resistance

Spin-out testing evaluates the torque required to rotate the installed rivet nut within its mounting hole.

This is especially relevant to knurled round-body designs.

Pull-Out Resistance

Pull-out testing evaluates axial retention when force acts to extract the insert from the parent panel.

Results depend on panel material, thickness, hole dimensions, installation deformation, and insert geometry.

Push-Out Resistance

Push-out testing evaluates resistance to displacement in the opposite axial direction.

The high flat-head flange and parent-panel contact geometry can influence this behavior.

Testing should use representative production materials and agreed acceptance criteria.

No numerical spin-out, pull-out, or push-out values are claimed without verified product-specific test data.

Vibration and Service Reliability

Automotive components may experience vibration, shock, temperature changes, and repeated maintenance operations.

The knurled body helps address insert rotation, but it does not independently prevent loosening of the mating screw.

The complete joint should be evaluated for:

• Required clamp load

• Mating screw properties

• Tightening torque

• Thread engagement

• Joint stiffness

• Transverse vibration

• Thermal cycling

• Repeated assembly and disassembly

• Environmental exposure

Where screw loosening is a concern, a suitable joint-level locking strategy may be required.

The locking method must be compatible with the application and approved by the responsible engineer.

Steel Material and Zinc Surface Treatment

JX-F2.5-M6-R-ST is specified as a steel rivet nut with Color Zinc or RoHS Blue Zinc surface-treatment options.

The exact steel grade, coating system, coating thickness, and passivation chemistry should be established through the approved material and finishing specifications.

Zinc coatings are commonly used for corrosion protection of steel fasteners.

However, a zinc finish should not be evaluated by color alone.

The term Color Zinc does not establish whether the passivation system contains hexavalent chromium.

Likewise, blue appearance alone does not establish RoHS compliance.

For automotive sourcing, the coating requirement should identify:

• Approved coating system

• Required corrosion performance

• Restricted-substance requirements

• Applicable coating documentation

• Compatibility with the parent material

• Any customer-specific finish requirements

ISO 4042 may be relevant to electroplated coating systems for fasteners.

ISO 9227 or ASTM B117 may be referenced where an agreed salt-spray test method is required.

A salt-spray test result should not be treated as a direct prediction of service life.

For susceptible high-strength steel components, electroplating-related hydrogen embrittlement risk should also be considered.

Corrosion Compatibility in EV Assemblies

Automotive assemblies increasingly combine steel fasteners with aluminum alloys and other lightweight materials.

When dissimilar conductive materials are exposed to moisture or electrolytes, galvanic corrosion may become a concern.

For zinc-plated steel rivet nuts installed in aluminum panels, engineering evaluation should consider:

• Parent-panel alloy

• Fastener coating system

• Mating screw material

• Moisture exposure

• Electrical contact

• Protective coatings

• Assembly drainage and sealing

• Environmental service conditions

The appropriate corrosion-control measures depend on the complete assembly design.

A zinc-plated steel insert should not automatically be considered suitable for every aluminum EV enclosure.

Knurled Round Body vs. Partial Hex and Full Hex Rivet Nuts

Automotive engineers often compare different body styles when selecting threaded inserts.

Knurled Round Body

Uses external surface features to engage a compatible round mounting hole. It can be useful where round-hole preparation is preferred and the required spin-out resistance can be achieved.

Partial Hex Body

Uses a partially non-round geometry to resist rotation through engagement with the approved mounting-hole profile.

Full Hex Body

Uses a hexagonal body profile for geometric anti-rotation engagement in a compatible hexagonal mounting hole.

The correct choice depends on the required mechanical performance, parent material, hole preparation, installation tooling, and total assembly cost.

These body styles should not be treated as directly interchangeable merely because they share an M6 thread.

OEM Quality Control and Supplier Qualification

For automotive OEM and Tier 1 purchasing, product qualification should address dimensional consistency, material conformity, surface treatment, and installation performance.

Recommended areas for review include:

• Approved dimensional drawing

• Part-number identification

• M6 internal thread inspection

• Knurl geometry and body dimensions

• Flange dimensions

• Grip range

• Steel material requirements

• Coating specification

• Installation compatibility

• Retention test requirements

• Lot identification

• Inspection and acceptance criteria

Customer programs may require first article inspection, PPAP documentation, material declarations, or additional automotive quality submissions.

Such requirements must be agreed for the actual sourcing program.

No IATF 16949 certification, PPAP approval, or OEM qualification is claimed without supporting documentation.

Procurement and Supply Chain Considerations

For purchasing managers, sourcing engineers, and supplier development teams, selecting an automotive rivet nut involves more than comparing unit prices.

Important commercial and technical considerations include:

• Drawing compatibility

• Installation process compatibility

• Required annual purchasing volume

• Production batch consistency

• Coating requirements

• Quality inspection expectations

• Traceability

• Packaging and labeling

• Delivery planning

• Engineering change control

A low-cost fastener may create additional assembly costs if hole preparation, setting parameters, or product dimensions are inconsistent.

For high-volume automotive programs, the total installed cost should include the insert, hole preparation, installation, inspection, and potential rework.

Other Industrial Applications

Beyond automotive manufacturing, M6 steel knurled blind rivet nuts may be evaluated for:

• Industrial machinery

• Electrical control cabinets

• Sheet-metal equipment housings

• HVAC equipment

• Agricultural machinery

• Commercial vehicle equipment

• Automation systems

• Fabricated metal panels

• Maintenance access covers

• Industrial equipment brackets

The same engineering principles apply: correct hole geometry, grip-range selection, installation control, and mechanical validation.

Related Fastening Solutions

JUXIN FASTENERS also supplies other blind rivet nut configurations for different engineering requirements.

Steel High Flat Head Open-End Partial Hex Body Blind Rivet Nuts

An alternative body configuration for applications requiring geometric anti-rotation engagement.

Steel Flat Head Open-End Square Body Blind Rivet Nuts

An alternative for approved square-hole mounting arrangements.

Aluminum Flat Head Open-End Knurled Body Blind Rivet Nuts

An alternative material configuration for suitable applications where component weight is a design consideration.

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

An alternative where aluminum construction and full hex body engagement are required.

Product selection and substitution must be based on the approved drawing, mounting-hole requirements, and application-specific testing.

Information Required for an Automotive OEM RFQ

To evaluate JX-F2.5-M6-R-ST for a production program, please provide:

• Part number or approved product drawing

• Required M6 thread specification

• Parent-panel material

• Panel thickness

• Mounting-hole dimensions

• Required grip range

• Installation equipment information

• Required spin-out resistance

• Required pull-out and push-out performance

• Surface-treatment specification

• Corrosion and environmental requirements

• Inspection and traceability requirements

• Prototype or production quantity

• Estimated annual purchasing volume

• Delivery destination

• Customer-specific quality requirements

Why Source This Product from JUXIN FASTENERS?

JUXIN FASTENERS supplies industrial fastening products for OEM purchasing and drawing-based sourcing requirements.

For automotive customers, the technical discussion can focus on the actual part geometry, material specification, coating requirements, installation compatibility, and quality expectations rather than nominal thread size alone.

JX-F2.5-M6-R-ST is a defined M6 steel high flat head open-end knurled body blind rivet nut with a stated grip range of 0.5–2.5 mm.

Final dimensional details, installation parameters, and mechanical acceptance criteria should be confirmed before production approval.

Request a Quotation

Looking for an M6 steel knurled blind rivet nut supplier for automotive OEM production, EV equipment assemblies, or high-volume sheet-metal manufacturing?

Send your drawings, technical specifications, estimated annual demand, and purchasing requirements to JUXIN FASTENERS.

Email: info@juxinfasteners.com

Website: www.juxinfasteners.com

Product Packaging

JUXIN FASTENERS arranges packaging for M6 steel high flat head open-end knurled body blind rivet nuts according to confirmed purchasing quantities, product protection requirements, and customer-specific shipping instructions.

Packaging Configuration

Inner Packaging: Protective bags or suitable containers, as agreed.

Outer Packaging: Export cartons according to the confirmed order.

Pallet Packaging: Subject to shipment requirements and prior agreement.

Quantity per Package: Confirmed according to order quantity, part dimensions, and handling requirements.

Custom OEM Packaging: Subject to approved customer specifications.

Product Identification

Packaging labels can be specified to include:

• Product Name: Steel High Flat Head Open-End Knurled Body Blind Rivet Nut

• Part Number: JX-F2.5-M6-R-ST

• Thread Size: M6

• Material: Steel

• Grip Range: 0.5–2.5 mm

• Surface Treatment: Color Zinc or RoHS Blue Zinc

• Lot or Batch Number

• Package Quantity

• Customer Purchase Order Number

Product Protection

Packaging should protect the internal threads, knurled body surface, high flat-head flange, and zinc coating against unnecessary damage during handling, storage, and transportation.

Different surface-treatment variants should be identified separately to reduce the risk of mixing during order fulfillment.

Automotive OEM Packaging Requirements

For automotive OEM and Tier 1 purchasing programs, packaging and labeling requirements may be agreed according to the customer's production and logistics procedures.

Where required, packaging arrangements may address lot traceability, barcode identification, batch segregation, handling instructions, and supporting shipment documentation.

Any customer-specific returnable packaging, labeling format, or logistics specification must be confirmed before implementation.

Packaging quantities and final shipment configurations are established during order confirmation.