Thin Head Open-End Smooth Body Steel Blind Rivet Nuts

Technical Specifications — Thin Head Steel Blind Rivet Nuts

Product Identification

Parameter

Specification

Metric Thread Reference

The following values represent standard ISO metric coarse thread pitches. Actual thread specifications must be verified against the applicable product drawing.

Nominal Thread

Standard Coarse Pitch

Relevant metric thread specifications may include ISO 261, ISO 724, and ISO 965, subject to the selected product requirements.

Engineering Design and Installation Guide

1. Thin Head Versus Standard Flat Head

Thin head blind rivet nuts are designed to reduce flange projection above the mounting surface.

This can be useful where adjacent components require limited clearance or where a conventional flange would interfere with assembly.

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

For designs requiring a truly flush surface, engineers should evaluate a compatible countersunk configuration and the necessary hole preparation.

2. Flange Height and Assembly Clearance

The flange height is a critical selection dimension for low-profile installations.

Before specifying the rivet nut, verify:

• Maximum permitted head projection

• Flange diameter

• Available contact area

• Clearance beneath adjacent components

• Panel surface flatness

• Mating component geometry

The approved drawing should define the flange dimensions and applicable tolerances.

3. Reduced Flange Contact Area

A thinner or smaller flange may provide less local bearing support than a larger-flange design, depending on the actual geometry.

In thin or relatively soft panels, local deformation around the mounting hole should be evaluated.

If the assembly requires a larger bearing surface or increased resistance to local panel damage, a standard flat head or large-flange rivet nut may be more suitable.

4. Mounting Hole Compatibility

Smooth round-body rivet nuts require mounting holes with suitable diameter, tolerance, and surface condition.

An oversized hole can reduce rotational retention. An undersized or poorly prepared hole may damage the rivet nut or prevent correct installation.

Hole dimensions must be obtained from the approved product drawing rather than estimated from nominal thread size.

5. Grip Range Selection

The published 0.5–5.0 mm grip range represents the available product series.

Each individual thread size and body length may have a different approved grip range.

Select the specific rivet nut according to the actual panel thickness and material.

6. Installation Procedure

1. Prepare the mounting hole according to the approved drawing.

2. Remove burrs and inspect the panel surface.

3. Select the correct rivet nut setting mandrel.

4. Insert the rivet nut until the thin flange contacts the panel.

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

6. Apply the specified setting stroke or force.

7. Confirm proper backside deformation.

8. Inspect flange seating and internal thread condition.

9. Evaluate rotational and axial retention where required.

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

7. Installation on Coated or Painted Panels

Blind rivet nuts may be installed in certain pre-coated or painted panels, subject to application requirements.

However, installation can damage coatings around the mounting hole or flange contact area.

For corrosion-sensitive assemblies, evaluate coating integrity, exposed edges, and any required post-installation protection.

Do not assume that blind installation preserves all protective coatings.

8. Spin-Out Torque and Pull-Out Resistance

Smooth-body rivet nuts rely on correct installation deformation and interaction with the panel for retention.

For applications involving repeated screw tightening, vibration, or elevated torque, evaluate spin-out resistance and axial pull-out performance.

Knurled-body or hex-body alternatives may be considered where additional anti-rotation engagement is necessary.

9. Open-End Thread Engagement

The open-end design allows the mating screw to extend through the threaded barrel when sufficient clearance exists.

Verify screw length, thread engagement, and possible interference behind the mounting panel.

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

10. Surface Treatment and Compliance

The original product specification identifies blue zinc plating and references RoHS and REACH requirements.

Actual compliance must be established through applicable material and coating documentation.

ASTM B633 or ISO 2081 may be considered when defining zinc electroplating requirements, subject to the agreed coating specification.

No corrosion resistance rating or restricted-substance conformity should be assumed from the coating color alone.

OEM Validation Checklist

Before production approval, verify:

• Mounting hole dimensions

• Individual grip range

• Flange height and diameter

• Installed head projection

• Panel deformation

• Backside setting geometry

• Spin-out resistance

• Pull-out resistance

• Thread integrity

• Coating condition

• Mating screw compatibility

Technical Drawings and CAD

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

Use the applicable drawing to confirm dimensional requirements, installation hole size, flange geometry, body length, and individual grip range.

OEM Technical RFQ Checklist

Please provide:

• Required metric thread size

• Panel material and thickness

• Mounting hole diameter and tolerance

• Maximum permitted head projection

• Flange diameter restrictions

• Required grip range

• Installation equipment or process

• Coating and corrosion requirements

• Mechanical performance requirements

• Technical drawing or CAD model

• Estimated order quantity and annual demand forecast

JUXIN FASTENERS can review standard and drawing-based requirements for OEM sourcing and industrial purchasing projects.

Typical Industrial Applications

Thin head steel blind rivet nuts may be used in electrical enclosures, control cabinets, machinery covers, compact equipment housings, appliance panels, 

automotive brackets, HVAC assemblies, and general sheet metal fabrication.

They are particularly relevant where flange projection could interfere with adjacent covers, mating panels, brackets, or other assembly components.

Engineering Selection

Thin head rivet nuts should not be assumed to install completely flush with the panel surface. 

The actual installed head projection depends on the flange geometry and mounting conditions.

Compared with larger-flange configurations, the reduced head contact area may influence local bearing stress and panel deformation.

Engineers should verify flange height, mounting hole tolerance, panel thickness, installation stroke, and spin-out resistance before approving the assembly.

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

Packaging & OEM Ordering — Thin Head Steel Blind Rivet Nuts

Standard Export Packaging

JUXIN FASTENERS provides industrial export packaging for thin head steel blind rivet nuts to support international transportation, storage, and handling.

Standard packaging arrangements may include:

• Protective polyethylene inner bags or small boxes

• Reinforced export cartons

• Moisture-resistant inner protection

• Product identification labels

• Part number, specification, batch number, and quantity marking

• Palletized shipment when required

Packaging quantities and carton dimensions are confirmed according to the selected product size and purchase order requirements.

Customized OEM Packaging

Customer-specific packaging arrangements can be reviewed, including:

• Private-label packaging

• Customized barcode labels

• Customer part-number identification

• Specified carton 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 product configuration

• Approved technical drawing and revision

• Material and surface treatment requirements

• Grip range and installation conditions

• Inspection and documentation requirements

• Packaging and labeling specifications

• Order quantity and annual demand forecast

• Requested delivery schedule

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

Request an OEM Quotation

JUXIN FASTENERS

Email: info@juxinfasteners.com

Website: www.juxinfasteners.com

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