M6 Thin Head Open-End Twist-Resistant Knurled Body Rivet Nuts

Product Specifications

Product Name: M6 Thin Head Open-End Twist-Resistant Knurled Body Rivet Nuts

Alternative Names: Open-End Twist-Resistant Rivet Nuts; Thin Flange Knurled Blind Rivet Nuts; Low-Profile Head Rivet Nuts

Part Number: JX-1358Q-S-M6-R-B12-20

Product Category: Custom Steel Blind Rivet Nuts

Thread Size: M6

Material: Steel

Head Type: Thin Head / Thin Flange

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

Thread Pitch and Tolerance: According to the approved drawing

Flange Thickness and Diameter: According to the approved drawing

Body Dimensions: According to the approved drawing

Mechanical Retention: Subject to application-specific validation

Primary Market: Automotive OEM and Electric Vehicle Assemblies

Product Overview

JUXIN FASTENERS supplies custom M6 thin head open-end knurled body blind rivet nuts for automotive manufacturers, electric vehicle component suppliers, and industrial OEMs requiring threaded fastening points with reduced front-side flange projection.

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

The knurled body is designed to engage the surrounding parent material during installation, helping resist insert rotation when a mating screw is tightened or removed.

The deformable barrel creates backside retention, allowing the insert to be installed from one accessible side of the parent panel.

The thin-head configuration is particularly relevant where flange projection and adjacent-component clearance must be considered.

The product is identified by part number JX-1358Q-S-M6-R-B12-20.

Final dimensions, mounting-hole requirements, installation parameters, and mechanical performance must be verified against the approved drawing.

Thin Head vs. Standard Flat Head Rivet Nuts

The defining feature of this product is its thin-head flange.

A conventional flat-head blind rivet nut typically provides a more pronounced front-side flange profile.

A thin-head design is intended to reduce the flange projection above the parent-panel surface.

This may be useful in automotive assemblies where the rivet nut is positioned beneath another component or where available installation space is limited.

Potential advantages include:

• Reduced front-side projection

• Improved compatibility with selected close-clearance assemblies

• Reduced interference with adjacent components

• More flexibility in certain sheet-metal packaging arrangements

However, a thin-head rivet nut should not automatically be considered flush-mounted.

A flush surface requires a specific compatible installation geometry.

Thin-head construction also does not automatically provide the same flange bearing performance as a thicker-head design.

The correct selection depends on flange dimensions, parent-panel material, and joint loading.

Automotive and Electric Vehicle Applications

Automotive OEMs frequently require compact threaded fastening solutions in equipment housings, sheet-metal brackets, and serviceable assemblies.

Thin-head knurled body rivet nuts may be evaluated where front-side projection is an important design consideration.

Potential applications include:

• Electric vehicle equipment mounting brackets

• Automotive sheet-metal support panels

• 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 mounting points

• Automotive control unit mounting brackets

• Selected body equipment supports

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

For structural, crash-related, or battery-safety-critical connections, the complete fastening system must be qualified against the relevant OEM requirements.

Why Thin-Head Geometry Matters in Automotive Assembly

Automotive packaging constraints can affect fastener selection as much as thread size.

In some assemblies, the rivet nut flange is located beneath a bracket, cover, or mating component.

Excessive flange projection may affect the intended contact condition or introduce interference.

A thin-head rivet nut can be evaluated as a possible solution where reduced projection is required.

However, engineers must consider the complete joint stack-up.

Important factors include:

• Actual flange thickness

• Parent-panel thickness

• Mating-component geometry

• Required contact area

• Local panel bearing

• Installation-tool clearance

• Screw engagement

• Joint clamp load

The thin-head design should be selected based on the approved assembly drawing rather than flange appearance alone.

Knurled Round Body and Twist Resistance

The external knurling is designed to engage the surrounding parent material after installation.

This engagement helps resist rotation of the installed rivet nut when a mating screw is tightened or removed.

For automotive assemblies, insert rotation may cause installation problems, loss of serviceability, or difficulty removing a component.

The knurled body addresses this concern through mechanical interaction with the mounting-hole wall.

Actual spin-out performance depends on:

• Knurl geometry

• Body diameter

• Mounting-hole dimensions

• Parent-panel material

• Material hardness

• Panel thickness

• Installation deformation

• Applied screw torque

A knurled body does not provide unlimited rotational resistance.

The required spin-out torque must be established through representative testing.

Knurled Round Body vs. Full Hex Body

Automotive engineers may compare knurled round-body rivet nuts with full hex body designs.

Knurled Round Body

Uses external knurling to engage the surrounding material in a compatible round hole.

This may be appropriate where round-hole manufacturing is preferred and the required rotational retention can be achieved.

Full Hex Body

Uses flat-sided geometric engagement in a compatible hexagonal mounting hole.

This may be appropriate where the assembly is designed around hexagonal hole preparation and a geometric anti-rotation mechanism.

The selection should consider:

• Parent-panel material

• Required spin-out resistance

• Hole manufacturing process

• Installation tooling

• Mechanical retention

• Assembly cost

• Service requirements

These designs should not be treated as interchangeable simply because they use the same M6 thread.

Round-Hole Installation Requirements

The knurled round-body design is intended for installation in a compatible round mounting hole.

The hole may be drilled, punched, or produced using another approved manufacturing process.

For automotive production, hole quality should be controlled for:

• Diameter and tolerance

• Roundness

• Burr condition

• Panel thickness

• Material hardness

• Hole-position accuracy

• Surface coating

An oversized hole may reduce rotational retention.

An undersized hole may interfere with installation or damage the insert or parent panel.

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

Standard M6 rivet nut hole dimensions should not be substituted without verification.

Grip Range: 0.5–3.0 mm

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

This identifies the parent-material thickness range intended for the specified rivet nut configuration.

The grip range is not the same as overall insert length, flange thickness, or internal thread engagement.

For automotive sheet-metal assemblies, the effective panel thickness must be checked against the approved grip range.

Where multiple layers are involved, engineers should determine the actual material thickness engaged by the insert.

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

The stated grip range must not be extended to other product variants 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 from the approved drawing.

Relevant metric thread references include ISO 261 and ISO 965.

For North American automotive 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 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 threaded barrel allows the mating screw to extend through the insert where sufficient backside clearance is available.

This may be useful when coordinating screw length and joint stack-up.

For automotive applications, engineers should verify:

• Thread compatibility

• Required thread engagement

• Screw projection

• Backside clearance

• Adjacent component interference

• Required clamp load

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

It should not be described as preventing contamination from entering through the open barrel.

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

Zinc-Nickel Alloy Plating for Automotive Applications

The specified surface treatment for this product 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

• Alloy composition

• Coating thickness

• 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 salt-spray rating or service life.

Relevant technical references may include ISO 4042 for electroplated fastener coating systems, ISO 19598 for zinc and zinc-alloy coatings on iron or steel with supplementary treatments, and ISO 9227 or ASTM B117 where specified for corrosion testing.

Customer-specific automotive coating specifications may impose additional requirements.

No particular coating thickness, nickel percentage, corrosion-test duration, or OEM approval is claimed without supporting documentation.

Zinc-Nickel vs. Conventional Zinc Plating

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

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

Purchasing 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 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 thin-head rivet nuts, installation-tool compatibility and flange seating are particularly important.

Recommended installation checks include:

• Correct mounting-hole dimensions

• Panel thickness within the approved grip range

• Correct mandrel and nosepiece

• Tool alignment

• Setting force or stroke

• Thin flange seating

• 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.

Thin-Head Flange Seating and Panel Support

Thin-head geometry may influence the way the flange contacts the parent panel.

For automotive assembly design, engineers should evaluate:

• Flange thickness

• Flange diameter

• Parent-panel hardness

• Local bearing stress

• Surface flatness

• Hole-edge condition

• Installation deformation

A thinner flange may reduce projection, but it does not automatically provide the same bearing behavior as a thicker flange.

The complete assembly should be evaluated for the intended loading conditions.

Mechanical Retention 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.

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

Vibration and Repeated Assembly

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

The knurled body helps resist insert rotation within the mounting hole.

It does not independently prevent mating screw loosening.

The complete joint should be evaluated for:

• Mating screw properties

• Tightening torque

• Clamp-load retention

• Thread engagement

• Joint stiffness

• Service vibration

• Thermal cycling

• Repeated assembly and disassembly

Where required, an appropriate screw-locking strategy should be specified separately.

Automotive OEM Quality and Supplier Qualification

For automotive OEM and Tier 1 sourcing, qualification should address the complete technical specification.

Recommended review items include:

• Approved product drawing

• Part number identification

• M6 thread specification

• Thin-head flange dimensions

• Knurled body geometry

• Mounting-hole dimensions

• Grip range

• Steel material specification

• Zinc-nickel coating specification

• Installation parameters

• Spin-out performance

• Axial retention

• Inspection and traceability requirements

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

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

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

Automotive Procurement and Total Installed Cost

For purchasing managers, sourcing engineers, and supplier development teams, thin-head knurled rivet nuts should be evaluated using both product cost and assembly cost.

Important considerations include:

• Thin-head dimensional consistency

• Round-hole preparation

• Installation-tool compatibility

• Required spin-out resistance

• Coating requirements

• Inspection procedures

• Rework risk

• Packaging and traceability

• Annual purchasing volume

• Delivery planning

A thin-head design may reduce interference in selected assemblies, but it should be compared with alternative flange configurations using the complete assembly drawing.

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

Other Industrial Applications

Beyond automotive manufacturing, thin-head knurled body rivet nuts may be evaluated for suitable industrial applications, including:

• Industrial machinery housings

• Electrical equipment enclosures

• Commercial vehicle equipment

• Industrial automation systems

• HVAC equipment panels

• Fabricated sheet-metal brackets

• Maintenance access panels

• Equipment covers

Application suitability must be verified against the actual joint requirements.

Related Fastening Solutions

Steel Flat Head Open-End Knurled Body Blind Rivet Nuts

A related configuration with a different flange profile.

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

An alternative for applications requiring a more pronounced flange geometry.

Steel Square Flange Knurled Body Blind Rivet Nuts

A custom configuration combining a square flange with a knurled round body.

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

An alternative for compatible hexagonal mounting-hole assemblies.

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

An alternative body geometry for suitable anti-rotation requirements.

Each alternative must be evaluated against the approved drawing and application-specific requirements.

OEM RFQ and Engineering Information

For a technical review and quotation, please provide:

• Part Number: JX-1358Q-S-M6-R-B12-20

• Approved 2D drawing or 3D CAD model

• Required M6 thread specification

• Parent-panel material

• Panel thickness

• Mounting-hole dimensions

• Thin-head flange diameter and thickness

• 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 Thin-Head Twist-Resistant 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 thin-head flange geometry, knurled body engagement, mounting-hole compatibility, zinc-nickel coating requirements, installation conditions, and mechanical performance.

JX-1358Q-S-M6-R-B12-20 is identified as an M6 steel thin-head open-end knurled round-body blind rivet nut with zinc-nickel alloy plating and a 0.5–3.0 mm grip range.

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

Request an Automotive OEM Quotation

Looking for M6 open-end twist-resistant rivet nuts, thin-head knurled blind rivet nuts, or zinc-nickel plated automotive threaded inserts?

Send your 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 thin-head 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 Thin Head Open-End Knurled Body Blind Rivet Nut

• Part Number: JX-1358Q-S-M6-R-B12-20

• 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 thin-head flange, 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 thin 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.