M6 Custom Square Flange Knurled Body Blind Rivet Nut – Steel

Product Specifications

Product Name: Custom Square Flange Knurled Body Blind Rivet Nut

Alternative Names: Square Head Blind Rivet Nut; Square Flange Threaded Insert; Custom Square Head Knurled Rivet Nut

Part Number: JX-1352Q-F-M6-R-SQU-B17-20

Product Category: Special Steel Blind Rivet Nuts

Thread Size: M6

Material: Steel

Head Type: Custom Square Flange / Square Head

Body Type: Knurled Round Body

End Configuration: Open End

Grip Range: 0.5–3.0 mm (approximately 0.020–0.118 in)

Surface Treatment: Zinc-Nickel Alloy Plating (Zn-Ni)

Installation Method: One-Sided Blind Installation

Mounting Hole: Compatible round hole; exact dimensions according to the approved drawing

Square Flange Dimensions: According to the approved drawing

Thread Pitch and Tolerance: According to the approved drawing

Mechanical Performance: Subject to application-specific validation

Primary Market: Automotive OEM and Electric Vehicle Components

Product Overview

JUXIN FASTENERS supplies custom M6 square flange knurled body blind rivet nuts for automotive manufacturers, electric vehicle component suppliers, and industrial OEMs requiring drawing-specific threaded fastening solutions.

This special-design rivet nut combines a square-shaped flange, a knurled round body, an open-end threaded barrel, and zinc-nickel alloy surface treatment.

The square flange distinguishes the product from conventional round-flange rivet nuts, while the knurled body provides surface engagement intended to resist insert rotation after installation.

The deformable barrel creates backside retention during one-sided installation, allowing a reusable internal thread to be incorporated into suitable thin sheet-metal assemblies.

Part number JX-1352Q-F-M6-R-SQU-B17-20 is a custom configuration. Its dimensional and mechanical requirements must be evaluated using the approved product drawing.

Square Flange vs. Square Body: An Important Engineering Distinction

A square flange rivet nut and a square body rivet nut are not the same product.

A square flange rivet nut has a square-shaped head or flange at the accessible panel surface.

The body beneath the flange may be round, knurled, hexagonal, or another specified geometry.

A square body rivet nut has a square-shaped installation body designed to engage a compatible square mounting hole.

For this product, the confirmed design is a square flange with a knurled round body.

The square flange must not be confused with the anti-rotation geometry of a square body.

This distinction is important when searching for replacement fasteners, preparing technical drawings, or qualifying alternative suppliers.

Using the wrong body classification may lead to incorrect mounting-hole preparation and installation incompatibility.

Custom Square Flange Design

The square flange is the defining custom feature of this product.

Unlike a conventional circular flange, the square head provides a different front-side contact geometry.

This may be useful where the OEM assembly requires a particular flange outline, contact area, or mating-component arrangement.

Potential design considerations include:

• Square flange width

• Flange thickness

• Corner geometry

• Flange orientation

• Contact with adjacent components

• Clearance to surrounding features

• Local panel bearing

• Installation-tool access

• Mating-component stack-up

A square flange should not automatically be assumed to provide greater mechanical strength than a round flange.

Its performance depends on the actual flange dimensions, panel material, installation condition, and applied loading.

For automotive applications, the square flange should be evaluated as part of the complete assembly geometry.

Automotive and Electric Vehicle Applications

Automotive manufacturers frequently use drawing-specific fastening components where standard catalog products do not match the required installation geometry.

Custom square flange rivet nuts may be considered for selected automotive sheet-metal assemblies requiring a specific front-side flange configuration.

Potential applications include:

• Automotive body equipment mounting panels

• Electric vehicle sheet-metal brackets

• EV battery system accessory mounting points

• Battery management system equipment housings

• Automotive electrical equipment enclosures

• Electric vehicle power electronics mounting panels

• Automotive interior equipment brackets

• Vehicle service access panels

• Commercial vehicle equipment housings

• Thermal management equipment supports

• Automotive control unit mounting brackets

• Selected fabricated steel or aluminum panel assemblies

These are potential engineering applications rather than confirmed approvals for every vehicle system.

For structural, crash-related, high-voltage, or battery-safety-critical applications, the complete fastening system must be evaluated against the relevant engineering and safety requirements.

Knurled Round Body and Anti-Rotation Performance

The external knurled body is designed to engage the surrounding parent material when installed in a compatible mounting hole.

This engagement helps resist insert rotation during mating screw tightening and removal.

The knurled body is particularly relevant to automotive assemblies where threaded connections may be accessed repeatedly during installation, maintenance, or component replacement.

The actual rotational retention depends on:

• Knurl geometry

• Body diameter

• Mounting-hole dimensions

• Parent-material hardness

• Panel thickness

• Installation deformation

• Mating screw torque

• Surface condition

The knurled body does not provide unlimited resistance to rotation.

A knurled rivet nut also does not independently prevent the mating screw from loosening under vibration.

Insert spin-out resistance and screw-loosening resistance must be evaluated separately.

Why Square Flange and Knurled Body Functions Should Be Evaluated Separately

The square flange and knurled body perform different functions.

The square flange establishes the front-side contact geometry.

The knurled round body contributes to rotational engagement within the mounting hole.

The deformable barrel creates backside retention.

These features interact during installation but should not be treated as equivalent mechanical functions.

For example, increasing the square flange dimensions does not automatically improve the engagement of the knurled body with the hole wall.

Likewise, strong knurled engagement does not guarantee adequate flange seating or axial retention.

Automotive design engineers should evaluate each feature against its intended function.

Round-Hole Installation and Mounting-Hole Control

This product uses a knurled round body intended for installation in a compatible round mounting hole.

The square flange does not mean that the mounting hole must be square.

The mounting-hole geometry must match the round body and the approved installation requirements.

For automotive production, hole preparation should be controlled for:

• Diameter and tolerance

• Roundness

• Burr condition

• Panel thickness

• Parent-material hardness

• Surface coating

• Hole-position accuracy

• Tool alignment

An oversized hole may reduce rotational retention.

An undersized hole may interfere with insertion or damage the knurled body or parent panel.

The correct hole dimensions must be obtained from the approved product drawing.

Hole dimensions from a standard M6 round-flange rivet nut should not be copied without verification.

Square Flange Orientation and Assembly Clearance

A square flange introduces orientation and clearance considerations that may not apply to a circular flange.

Depending on the surrounding component geometry, the flange corners may approach adjacent features differently from a round head.

For OEM assembly design, engineers should review:

• Flange orientation

• Corner clearance

• Contact with mating components

• Available installation-tool space

• Proximity to panel edges

• Surface seating

• Assembly tolerances

If flange orientation is important to the application, the installation process must account for the required positioning.

The square flange should not be assumed to self-orient during installation.

Any orientation requirement must be defined in the approved assembly process.

Grip Range: 0.5–3.0 mm

The specified grip range for this product is 0.5–3.0 mm.

This identifies the parent-material thickness range for the approved insert configuration.

The grip range is separate from the square flange thickness, body length, and internal thread engagement.

For automotive sheet-metal applications, engineers should confirm the effective parent-panel thickness before selecting the insert.

Where multiple layers are involved, the actual material thickness engaged by the rivet nut should be established.

Installation outside the approved grip range may affect backside deformation, flange seating, axial retention, and rotational resistance.

The stated grip range must not be extended to other product configurations without dimensional verification.

M6 Metric Thread and Inch Reference

The confirmed nominal thread size is M6.

M6 has a nominal diameter of 6.0 mm, approximately 0.2362 in.

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

Relevant metric thread references include ISO 261 and ISO 965.

For North American sourcing, M6 must not be substituted with 1/4-20 UNC or 1/4-28 UNF.

These thread forms are not directly interchangeable.

ASME B1.1 may be relevant when comparing Unified inch-thread requirements, but it does not replace the approved metric thread specification.

The grip range of 0.5–3.0 mm corresponds approximately to 0.020–0.118 in.

These inch values are dimensional references only.

Open-End Design and Screw Engagement

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

For automotive equipment panels and brackets, screw-length selection should account for:

• Mating screw thread specification

• Required thread engagement

• Joint stack-up

• Square flange thickness

• Backside clearance

• Adjacent component interference

• Required tightening torque

The open-end configuration does not provide a sealed threaded connection.

Where moisture, dust, or fluid ingress must be controlled, a separate validated sealing arrangement may be required.

Zinc-Nickel Alloy Plating for Automotive OEM Applications

The specified surface treatment is zinc-nickel alloy plating.

Zinc-nickel coatings are used in automotive and industrial fastening applications where a defined corrosion-protection system is required.

For OEM sourcing, the coating specification should establish:

• Zinc-nickel alloy coating requirements

• Coating thickness

• Alloy composition

• Passivation chemistry

• Optional sealing or topcoat

• Corrosion-performance requirements

• Thread fit after coating

• Restricted-substance requirements

• Coating inspection criteria

The term "zinc-nickel alloy" does not establish a particular corrosion-test duration or service life.

Relevant technical references may include ISO 4042, ISO 19598, ISO 9227, and ASTM B117 where applicable to the approved coating and testing requirements.

Customer-specific automotive coating specifications may impose additional requirements.

No particular coating thickness, nickel percentage, salt-spray performance, or OEM approval is claimed without verified documentation.

Zinc-Nickel Plating vs. Conventional Zinc Plating

Zinc-nickel and conventional zinc coating systems differ in composition and may differ in corrosion behavior, process requirements, and cost.

For automotive sourcing, the appropriate comparison should be based on the complete coating specifications rather than coating appearance.

Purchasing and engineering teams should review:

• Approved coating designation

• Coating thickness

• Passivation and topcoat

• Corrosion-test requirements

• Restricted-substance documentation

• Compatibility with the parent material

• Cost and production requirements

A zinc-nickel plated automotive rivet nut should not be substituted with a conventional zinc-plated version without engineering approval.

Galvanic Corrosion in EV Assemblies

Electric vehicles frequently combine steel fasteners with aluminum alloys and other lightweight materials.

Where dissimilar conductive materials are connected in the presence of moisture or electrolytes, galvanic corrosion may occur.

For zinc-nickel plated steel rivet nuts installed in aluminum panels, engineers should consider:

• Parent-panel alloy

• Coating system

• Mating screw material

• Moisture exposure

• Electrical contact

• Surface protection

• Sealing arrangements

• Environmental service conditions

The complete joint should be evaluated for the intended operating environment.

Zinc-nickel plating does not automatically eliminate galvanic corrosion risks.

Installation Process for Automotive Production

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

During installation, the tool applies axial force to deform the designated barrel section behind the parent panel.

This creates the backside retention needed to secure the threaded insert.

For the custom square flange design, installation-tool compatibility should be verified.

The flange outline and dimensions may affect tool access and nosepiece clearance.

Recommended installation checks include:

• Correct mounting-hole dimensions

• Panel thickness within the approved grip range

• Correct mandrel and nosepiece

• Tool alignment

• Square flange seating

• Required flange orientation, where applicable

• Setting force or stroke

• Backside deformation

• Internal thread condition

• Axial retention

• Spin-out resistance

Under-setting may produce insufficient retention.

Over-setting may damage the insert, distort the parent panel, or affect the internal thread.

Installation parameters must be established using representative production materials.

Mechanical Performance and Joint Reliability

The mechanical performance of a blind rivet nut depends on the complete installation.

For automotive OEM qualification, engineers should distinguish among:

• Pull-out resistance

• Push-out resistance

• Spin-out torque

• Thread stripping resistance

• Parent-panel deformation

• Joint stiffness

• Vibration performance

Pull-out resistance concerns axial extraction of the installed insert.

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

Spin-out resistance concerns rotation of the installed insert within the mounting hole.

These characteristics are not interchangeable.

A square flange may influence front-side contact behavior, while the knurled body contributes to rotational engagement.

No numerical mechanical performance is claimed without product-specific testing.

Vibration and Repeated Assembly

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 mating screw loosening.

For vibration-sensitive applications, the complete fastening system should be evaluated for:

• Mating screw properties

• Tightening torque

• Clamp-load retention

• Thread engagement

• Joint stiffness

• Transverse vibration

• Thermal cycling

• Repeated assembly and disassembly

Where required, an appropriate joint-level locking strategy should be specified and validated.

Custom Automotive Fastener Development

Automotive OEMs may require custom fastener geometry when standard catalog parts do not match the approved assembly design.

For this product, the defining custom feature is the square flange combined with a knurled round body.

Before approving an alternative design, engineers should compare:

• Square flange dimensions

• Flange thickness

• Corner geometry

• Body diameter

• Knurl profile

• Overall length

• Grip range

• Mounting-hole dimensions

• Material specification

• Zinc-nickel coating requirements

• Installation parameters

• Mechanical retention

Two M6 rivet nuts may have different installation requirements even when their internal threads are identical.

The part number JX-1352Q-F-M6-R-SQU-B17-20 should be used to identify this specific configuration during technical and commercial discussions.

Automotive OEM and Tier 1 Supplier Qualification

For automotive OEM and Tier 1 purchasing, qualification should be based on the complete technical specification.

Recommended review items include:

• Approved product drawing

• Part number and drawing revision

• M6 internal thread specification

• Square flange dimensions

• Knurled body geometry

• Grip range

• Steel material specification

• Zinc-nickel coating specification

• Mounting-hole requirements

• Installation compatibility

• Axial and rotational retention

• Inspection and traceability requirements

Customer-specific programs may require dimensional inspection records, material documentation, coating certificates, first article inspection, PPAP submissions, or additional automotive quality records.

APQP, PPAP, IMDS, and IATF 16949-related requirements should be addressed according to the actual customer program.

No certification, PPAP approval, or automotive OEM qualification is implied without supporting documentation.

Automotive Procurement and Total Installed Cost

For purchasing managers, sourcing engineers, and supplier development teams, custom rivet nut procurement should begin with drawing compatibility.

The lowest unit price does not necessarily provide the lowest installed cost.

Additional costs may arise from:

• Mounting-hole preparation

• Installation tooling

• Assembly cycle time

• Flange orientation requirements

• Inspection

• Rework

• Coating qualification

• Supplier qualification

• Packaging and traceability

For high-volume automotive programs, the complete fastener specification should be established before finalizing production purchasing quantities.

Other Industrial Applications

Although this product is positioned primarily for automotive OEM applications, similar square flange knurled body rivet nuts may be evaluated for:

• Industrial machinery housings

• Electrical equipment enclosures

• Commercial vehicle components

• Automation equipment

• Agricultural machinery

• HVAC equipment

• Fabricated sheet-metal brackets

• Maintenance access panels

• Industrial control cabinets

The square flange geometry and installation requirements must be suitable for the actual application.

These are potential engineering markets rather than claims that the exact part has already been approved for every use.

Related Fastening Solutions

Steel High Flat Head Open-End Knurled Body Blind Rivet Nuts

A related design with a conventional head configuration and knurled body engagement.

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

An alternative for applications requiring a different anti-rotation body geometry.

Steel Flat Head Open-End Square Body Blind Rivet Nuts

An alternative where the body itself is square and the mounting hole is designed accordingly.

Steel Flat Head Open-End Full Hexagonal Body Blind Rivet Nuts

An alternative for applications requiring full hexagonal body engagement.

Aluminum Flat Head Open-End Knurled Body Blind Rivet Nuts

An alternative material configuration for suitable lightweight assemblies.

Each alternative should be compared using approved drawings and application-specific requirements.

OEM RFQ and Engineering Information

For a technical review and quotation, please provide:

• Part Number: JX-1352Q-F-M6-R-SQU-B17-20

• Approved 2D drawing or 3D CAD model

• Required M6 thread specification

• Parent-panel material

• Panel thickness

• Mounting-hole dimensions

• Square flange width and thickness

• Flange corner geometry

• Knurled body dimensions

• Required grip range

• Installation-tool information

• Mating screw specifications

• Required spin-out torque

• Pull-out and push-out requirements

• Zinc-nickel coating specification

• Corrosion and environmental requirements

• Inspection and traceability requirements

• Prototype or production quantities

• Estimated annual purchasing volume

• Delivery destination

Why Source Custom Square Flange Rivet Nuts from JUXIN FASTENERS?

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

For automotive customers, technical discussions can focus on the custom square flange geometry, knurled body engagement, mounting-hole compatibility, zinc-nickel coating requirements, and installation performance.

JX-1352Q-F-M6-R-SQU-B17-20 is identified as an M6 steel open-end knurled round-body blind rivet nut with a custom square flange, zinc-nickel alloy plating, and a 0.5–3.0 mm grip range.

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

Request an Automotive OEM Quotation

Looking for M6 square flange rivet nuts, custom square head blind rivet nuts, or zinc-nickel plated automotive threaded inserts?

Send your engineering drawings, technical specifications, and estimated purchasing quantities to JUXIN FASTENERS.

Email: info@juxinfasteners.com

Website: www.juxinfasteners.com

Product Packaging

JUXIN FASTENERS arranges packaging for custom M6 steel square flange knurled body blind rivet nuts according to confirmed purchasing quantities, product dimensions, zinc-nickel coating requirements, and automotive OEM customer instructions.

Packaging Configuration

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

Outer Packaging: Cartons according to confirmed shipping requirements.

Pallet Packaging: Subject to order and logistics arrangements.

Custom OEM Packaging: According to approved customer specifications.

Quantity per Package: Confirmed during order processing.

Product Identification

Where required, packaging labels may include:

• Product Name: M6 Steel Square Flange Knurled Body Blind Rivet Nut

• Part Number: JX-1352Q-F-M6-R-SQU-B17-20

• Thread Size: M6

• Material: Steel

• Grip Range: 0.5–3.0 mm

• Surface Treatment: Zinc-Nickel Alloy

• Lot or Batch Number

• Package Quantity

• Customer Purchase Order Number

Product Protection

Packaging should protect the custom square flange, flange corners, knurled round body, internal threads, and zinc-nickel coating against unnecessary damage during handling, storage, and transportation.

Special attention should be given to protecting the square flange geometry and coated surfaces, as these features are important for drawing-specific automotive assembly requirements.

Automotive OEM Packaging and Traceability

For automotive OEM and Tier 1 purchasing programs, packaging and identification requirements may be agreed according to customer-specific logistics procedures.

Where required, arrangements may include lot traceability, barcode labeling, batch segregation, coating identification, inspection documentation, and customer-specific packaging instructions.

Final packaging quantities, carton configurations, labeling formats, and shipment arrangements are confirmed before delivery.