Thin Head Open-End Steel Blind Rivet Nuts – Color Zinc

Technical Specifications — Color Zinc Thin Head Steel Blind Rivet Nuts

Product Identification

Metric Thread Sizes and US Inch Reference

The following table provides standard ISO metric coarse thread pitches with approximate inch conversions for engineering reference.

Important: Inch values are dimensional conversions only. ISO metric threads are not interchangeable with UNC or UNF threads.

Actual thread tolerances must be confirmed against the approved drawing. Relevant references may include ISO 261, ISO 724, and ISO 965.

Metric and Imperial Grip Range Reference

The published product-series grip range is 0.5–5.0 mm (approximately 0.020–0.197 in).

Selection Note: These values are conversion references, not individual rivet nut grip specifications. 

Each selected part number must be checked against its approved grip range and installation drawing.

Engineering Selection and Installation Guide

1. Thin Head Versus Standard Flat Head

Thin head blind rivet nuts are intended for assemblies where surface projection must be minimized.

Compared with a conventional larger-head configuration, a thin head may reduce interference with adjacent components.

However, thin head does not mean countersunk or completely flush.

Engineers should verify:

• Maximum allowable flange projection

• Flange diameter and thickness

• Mating component clearance

• Panel surface flatness

• Local panel deformation

• Available bearing area

Where a flush installation is required, a suitable countersunk rivet nut and corresponding hole preparation should be evaluated.

2. Mounting Hole Dimensions

The smooth round body requires a mounting hole with an appropriate diameter and tolerance.

An oversized mounting hole may reduce rotational retention, while an undersized hole may prevent correct insertion or damage the surface finish.

The mounting hole must be specified according to the approved product drawing.

For US engineering documentation, mounting hole dimensions may be expressed in both millimeters and inches.

Do not derive the mounting hole diameter from the nominal metric thread size.

3. Grip Range and Panel Compatibility

The published grip range of 0.5–5.0 mm (approximately 0.020–0.197 in) applies to the product series.

Individual rivet nut sizes and body lengths may have different approved grip ranges.

Select the correct configuration based on actual panel thickness, panel material, coating thickness, and assembly geometry.

For multilayer assemblies, confirm whether the combined thickness is compatible with the selected rivet nut.

4. Smooth Body and Spin-Out Resistance

Smooth round-body rivet nuts rely on the interaction between the installed deformation and the surrounding panel for retention.

Unlike knurled-body or hex-body rivet nuts, smooth-body designs do not provide additional geometric anti-rotation engagement.

For assemblies involving repeated screw tightening, vibration, or elevated torque, evaluate spin-out resistance under representative installation conditions.

Alternative body styles may be considered where greater rotational resistance is required.

5. Installation Procedure

1. Verify the selected rivet nut matches the approved drawing.

2. Prepare the specified mounting hole and remove burrs.

3. Inspect panel thickness and surface condition.

4. Select a compatible setting mandrel and installation tool.

5. Insert the rivet nut until the thin flange seats against the panel.

6. Hold the setting tool perpendicular to the mounting surface.

7. Apply the approved installation stroke or setting force.

8. Inspect the formed backside retention section.

9. Verify flange seating and internal thread condition.

10. Perform retention testing where required by the application.

Manual, pneumatic, or automated installation equipment may be considered when compatible with the selected product and approved setting parameters.

6. Color Zinc Plating and Corrosion Protection

The specified surface treatment is color zinc plating.

For OEM purchasing, the coating requirements should define:

• Zinc coating thickness

• Passivation chemistry

• Additional sealing or topcoat requirements

• Corrosion exposure conditions

• Required corrosion testing and acceptance criteria

• Applicable RoHS and REACH requirements

• Compatibility with mating materials

ASTM B633 and ISO 2081 may be referenced when technically applicable to the selected zinc electroplating system.

Coating color alone does not establish corrosion resistance or restricted-substance conformity.

7. Installation on Painted or Coated Panels

Blind rivet nuts may be considered for certain pre-coated or painted sheet metal assemblies.

However, installation may damage coatings around the mounting hole or flange contact surface.

For corrosion-sensitive applications, evaluate coating damage, exposed panel edges, and any required post-installation protection.

Installation should be validated on representative production panels.

8. Open-End Thread Engagement

The open-end design permits the mating screw to extend through the threaded barrel when sufficient backside clearance is available.

Engineers should verify:

• Required thread engagement

• Screw length and tolerance

• Total clamped material thickness

• Available backside clearance

• Potential interference with adjacent components

Open-end rivet nuts do not provide an inherently sealed threaded connection.

9. Thin Head Versus Large Flange Selection

A thin head can reduce surface projection, while a larger flange may provide greater bearing area against the mounting panel.

The correct selection depends on actual flange geometry, panel strength, local bearing stress, and assembly clearance.

For applications where local panel deformation or pull-through is a concern, the complete installed joint should be evaluated.

10. Mechanical Validation for OEM Production

Representative sample testing may include:

• Installation stroke or force verification

• Flange seating inspection

• Backside deformation inspection

• Internal thread integrity

• Spin-out torque

• Axial pull-out resistance

• Repeated screw installation

• Panel deformation

• Coating condition

• Corrosion testing where specified

Acceptance criteria should be agreed according to the OEM application and technical documentation.

International Engineering Documentation

JUXIN FASTENERS supports technical inquiries using metric and US customary dimensional systems.

For drawing-based sourcing, customers may submit drawings referencing applicable ISO, ASME, ASTM, or other relevant international standards.

Metric thread sizes remain identified by their ISO designations. UNC or UNF configurations must be separately specified and reviewed for feasibility.

Technical Drawings and CAD

The existing product information references detailed specification PDF pages 91–92 and related CAD documentation.

The applicable drawing should be reviewed to confirm individual dimensions, mounting hole tolerances, flange geometry, body length, and approved grip range.

OEM Technical RFQ Checklist

For accurate quotation and engineering review, please provide:

• Required metric thread size or separately specified imperial thread requirement

• Panel material and thickness, in mm or inches

• Mounting hole diameter and tolerance

• Maximum allowable flange projection

• Required grip range

• Available backside clearance

• Installation equipment or setting requirements

• Zinc coating and corrosion specifications

• Mechanical retention requirements

• Product drawing or CAD model

• Order quantity and annual demand forecast

JUXIN FASTENERS supports drawing-based inquiries for standard and custom industrial blind rivet nut requirements.

Industrial Applications

Typical applications include automotive brackets, electrical enclosures, control cabinets, 

HVAC equipment, machinery covers, appliance panels, industrial housings, and fabricated sheet metal components.

These rivet nuts are particularly relevant where a conventional large-flange fastener could interfere with adjacent covers, brackets, or mating surfaces.

Engineering Selection

Thin head rivet nuts should not be assumed to provide a completely flush installation. 

The actual flange projection must be confirmed against the dimensional drawing.

Smooth-body rivet nuts also require careful mounting hole control and installation validation because they lack 

the additional geometric anti-rotation engagement of knurled or hexagonal bodies.

For color zinc-plated components, 

OEM purchasing specifications should define the required coating system and corrosion performance rather than relying on surface appearance alone.

JUXIN FASTENERS supports drawing-based OEM sourcing and industrial bulk purchasing requirements for steel blind rivet nuts.

Packaging & OEM Ordering — Color Zinc Thin Head Steel Blind Rivet Nuts

Standard Export Packaging

JUXIN FASTENERS provides standard export packaging for industrial blind rivet nuts to support product protection, identification, handling, and international transportation.

Depending on product size and order requirements, packaging may include:

• Protective polyethylene inner bags or small boxes

• Moisture-resistant inner protection

• Reinforced export cartons

• Labels identifying part number, specification, batch number, and quantity

• Palletized shipment when required

Final packing quantities, carton dimensions, and shipping arrangements are confirmed according to the purchase order.

Customized OEM Packaging

Customer-specific packaging arrangements can be reviewed, including:

• Private labeling

• Customized barcode labels

• Customer part-number identification

• Specified carton dimensions

• Customer-defined packing quantities

• Special pallet configurations

• Customer-specific marking and traceability requirements

Customized packaging may involve additional costs or lead times depending on the agreed requirements.

OEM and Industrial Bulk Purchasing

For OEM manufacturers, purchasing managers, strategic sourcing teams, and supplier development professionals, please provide:

• Required thread size and rivet nut configuration

• Approved technical drawing and revision

• Material and color zinc coating requirements

• Panel thickness and grip range, in mm or inches

• Installation and inspection requirements

• Packaging and labeling specifications

• Initial order quantity and annual demand forecast

• Requested delivery schedule

Sample availability, minimum order quantity, pricing, production lead time, and ordering conditions are confirmed during quotation review.

Request an OEM Quotation

For color zinc thin head blind rivet nuts, drawing-based threaded inserts, and industrial bulk purchasing requirements, contact:

JUXIN FASTENERS

Email: info@juxinfasteners.com

Website: www.juxinfasteners.com

Please send your technical drawing, specifications, and purchasing requirements for review and quotation.