Stainless Steel Thin Head Open-End Partial Hex Body Blind Rivet Nuts

Stainless Steel Thin Head Open-End Partial Hex Body Blind Rivet Nuts – Technical Specifications

JUXIN FASTENERS supplies stainless steel thin head open-end partial hex body blind rivet nuts for industrial OEM manufacturers, sheet-metal fabricators, mechanical design engineers, and international procurement teams.

Also described as part hex, half hex, or semi-hex blind rivet nuts, these threaded inserts combine a low-profile flange with a body containing both hexagonal and cylindrical sections.

They provide reusable internal threads in thin panels, hollow sections, and fabricated components where installation is possible from one accessible side.

Product Specifications

The stated grip range represents the product family. Individual grip limits, body dimensions, mounting-hole requirements, and installation conditions must be verified against the selected product drawing.

Engineering Features and Selection Considerations

1. Partial Hexagonal Body for Rotational Resistance

A partial hex body rivet nut combines a hexagonal section with a cylindrical section.

The hexagonal section can provide mechanical resistance to insert rotation when it engages a correctly matched non-round mounting hole.

This is particularly useful where screws are tightened or removed repeatedly.

Unlike a smooth round body insert, which relies largely on installation deformation and frictional retention, a correctly engaged hexagonal section can provide additional geometric resistance to rotation.

However, actual spin-out performance depends on the selected insert geometry, mounting-hole shape, parent material, panel thickness, and installation conditions.

A partial hex body should not automatically be assigned a specific torque rating without supporting test data.

2. Round Hole vs. Hexagonal Hole Installation

Mounting-hole compatibility is one of the most important selection questions for partial hex body rivet nuts.

Some half-hex designs are intended for appropriately sized round holes, while others require matching hexagonal holes to achieve the intended rotational resistance.

Therefore, the designation "partial hex" alone is not sufficient to determine the correct hole geometry.

For hexagonal mounting holes, engineers should confirm:

• Hole width across flats

• Corner geometry and radius

• Hole tolerance

• Material thickness

• Orientation and seating conditions

For round-hole-compatible designs, engineers should confirm:

• Recommended hole diameter

• Hole tolerance

• Body insertion clearance

• Installation deformation requirements

• Validated rotational performance

A round hole should not be substituted for a specified hexagonal hole without engineering approval.

3. Thin Head for Reduced Surface Projection

The thin head uses a reduced-height flange to limit projection above the mounting surface.

This can be useful for overlapping panels, compact enclosures, closely fitted equipment covers, and assemblies where available surface clearance is limited.

However, a thin head is not necessarily completely flush.

If zero or tightly controlled head projection is required, engineers should review the actual flange thickness, installed position, and mating-component clearance.

A full countersunk design may be considered where a prepared recess is acceptable.

4. Hexagonal Engagement and Panel Material

The ability of a partial hex insert to resist rotation depends on more than the insert body shape.

The surrounding parent material must provide sufficient support for the hexagonal section.

Thin or relatively soft panels may deform around the hole under high tightening torque or repeated service loads.

Harder materials may require closer attention to hole preparation and insertion compatibility.

Engineers should consider the parent material, hole manufacturing method, hole tolerance, grip range, and anticipated service torque together.

For critical assemblies, rotational testing should use representative production panels rather than unsupported catalogue assumptions.

5. Open-End Configuration and Screw Extension

The open-end design allows a mating screw or stud to extend through the threaded insert when sufficient backside clearance is available.

This can provide additional flexibility in screw-length selection compared with closed-end rivet nuts.

However, screw penetration must be checked against wiring, internal equipment, moving components, and nearby structures.

Engineers should verify screw length, thread engagement, assembled stack thickness, and available backside clearance.

Where screw penetration must be restricted, a closed-end configuration may be preferable.

6. Grip Range and Thin Sheet-Metal Installation

This product family is identified with a grip range of 0.5–4.0 mm, depending on the selected size and configuration.

The grip range describes the material thickness that a specific insert is designed to accommodate under its approved installation conditions.

The complete family range must not be applied indiscriminately to every thread size.

For thin panels, engineers should pay particular attention to local deformation, flange seating, hole quality, and the support available behind the panel.

For assemblies near the minimum or maximum permitted grip thickness, representative installation testing may be appropriate.

7. One-Sided Installation and Setting Control

Blind rivet nuts are installed from one accessible side of the workpiece.

A compatible setting tool applies axial force to deform the insert behind the panel, creating mechanical retention.

For partial hex body designs, the tool and hole geometry must allow the insert to seat correctly before setting.

Installation parameters should be established according to the selected part and parent material.

Insufficient setting may result in inadequate retention.

Excessive setting may damage the insert, distort the panel, or affect internal thread quality.

OEM production processes should verify installation consistency using representative parts.

8. Stainless Steel Material Selection

Stainless steel may provide corrosion-resistance advantages for selected industrial environments.

The exact stainless steel grade has not been confirmed for this product family.

For applications involving moisture, cleaning chemicals, chlorides, or dissimilar metals, the material specification should be reviewed before selection.

Where material traceability is required, the requested grade and supporting documentation should be stated in the RFQ.

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

Partial hex body rivet nuts combine hexagonal and cylindrical body sections.

Full hex body rivet nuts use a hexagonal exterior over a greater portion of the body and generally require a compatible non-round mounting hole.

Knurled round body rivet nuts use external ribs to engage the surrounding parent material.

The three configurations differ in hole preparation, installation behavior, rotational engagement, and potential replacement compatibility.

A partial hex insert should not be treated as interchangeable with a full hex or knurled round body insert based only on nominal thread size.

The selected body geometry must match the intended mounting hole and required mechanical performance.

Thin Head vs. Countersunk Head

Thin head rivet nuts reduce flange projection without necessarily requiring a countersunk recess.

Full countersunk rivet nuts are designed to sit within a correctly prepared countersink.

A thin head configuration may be preferable where additional hole preparation is undesirable.

A countersunk design may be more suitable where a flush surface is required and sufficient panel material is available.

The correct choice depends on panel thickness, surface-clearance requirements, installation loads, and approved hole geometry.

Industrial Applications and OEM Fastening Solutions

Automotive and Commercial Vehicles

Partial hex blind rivet nuts may be considered for fabricated brackets, interior equipment panels, serviceable housings, and sheet-metal components.

Where repeated screw removal or vibration is expected, the required rotational resistance should be verified.

Electrical Cabinets and Electronic Equipment

Potential applications include control cabinets, instrument enclosures, electronic housings, and removable equipment panels.

The thin flange can help reduce interference with adjacent components.

Open-end screw penetration and internal electrical clearances must be considered.

Industrial Machinery

These inserts may provide reusable internal threads for equipment guards, maintenance covers, access panels, and fabricated machine structures.

Partial hex body designs may be relevant where rotational retention is an important consideration during repeated servicing.

HVAC and Appliance Manufacturing

Potential applications include equipment cabinets, appliance housings, mounting brackets, and fabricated covers.

Panel thickness, hole preparation, and production installation consistency should be confirmed.

Railway and Transportation Equipment

Potential applications include non-safety-critical interior panels, serviceable equipment enclosures, and fabricated mounting components.

Application-specific vibration, load, material, and documentation requirements must be reviewed.

Metal Furniture and General Fabrication

Partial hex blind rivet nuts may be evaluated for fabricated metal furniture, equipment frames, hollow sections, and other assemblies requiring one-sided threaded fastening.

The selected hole geometry and retention performance should match the intended service conditions.

Engineering Selection Checklist

Before approving a stainless steel thin head partial hex blind rivet nut, confirm:

• Required thread size and thread series

• Stainless steel grade

• Parent material and panel thickness

• Approved grip range for the selected size

• Round-hole or hex-hole compatibility

• Mounting-hole dimensions and tolerances

• Hexagonal body width across flats

• Body diameter and overall length

• Flange diameter and head thickness

• Available backside clearance

• Screw length and thread engagement

• Installation tool and setting parameters

• Required spin-out torque

• Required push-out and pull-out performance

• Corrosion exposure and inspection requirements

• Material documentation and traceability

Engineering Standards and Technical Verification

Product selection should be based on the approved dimensional drawing and the intended assembly requirements.

Metric internal threads may be specified using applicable ISO metric thread standards, including ISO 261 and ISO 965 where relevant.

Where UNC or UNF threads are requested, applicable ASME B1.1 requirements should be identified separately.

Metric and UNC/UNF threads are not directly interchangeable.

Inch values shown as conversions are dimensional references only and do not establish the availability of corresponding inch-threaded inserts.

Relevant ISO, DIN, EN, ASTM, SAE, ASME, or other applicable standards should be selected according to actual product, material, inspection, and application requirements.

No certification, dimensional standard conformity, or mechanical performance value should be assumed without supporting documentation.

OEM Procurement and Supplier Qualification

For purchasing managers and supplier development teams, partial hex rivet nuts require careful compatibility review.

Two products described as M6 half-hex rivet nuts may differ in body geometry, mounting-hole requirements, flange dimensions, grip range, and installation tooling.

A replacement insert may have the same internal thread while requiring a different hole shape or producing different rotational retention.

Before approving an alternative supplier, procurement teams should compare the complete dimensional drawing and verify the installation in representative production panels.

For recurring OEM programs, inspection criteria, material requirements, traceability, packaging, annual demand, and delivery expectations should be agreed upon during sourcing.

Custom OEM Partial Hex Rivet Nut RFQ Requirements

Please provide:

• 2D drawing or 3D CAD model

• Required thread size and quantity

• Stainless steel grade

• Parent material and actual panel thickness

• Mounting-hole shape, dimensions, and tolerance

• Partial hex body dimensions

• Flange diameter and thickness

• Required grip range

• Screw length and backside clearance

• Installation method and tooling requirements

• Required rotational and axial retention performance

• Inspection and traceability requirements

• Sample or production quantities

• Estimated annual demand and delivery destination

JUXIN FASTENERS supports drawing-based technical reviews and OEM sourcing discussions for industrial blind rivet nuts and custom threaded fastening components.

Final dimensions, mounting-hole compatibility, material availability, and inspection requirements should be confirmed before production approval.

Related Fastening Solutions

Full Hex Body Blind Rivet Nuts

An alternative for assemblies requiring a fully hexagonal insert body and compatible mounting-hole geometry.

Thin Head Open-End Knurled Blind Rivet Nuts

A low-profile round body alternative with external knurling.

Thin Head Closed-End Knurled Blind Rivet Nuts

An alternative where a low-profile flange and prevention of screw penetration through the insert are required.

Countersunk Head Open-End Knurled Blind Rivet Nuts

A potential option where full countersink preparation and a knurled round body are appropriate.

Request an OEM Quotation

For stainless steel thin head open-end partial hex body blind rivet nuts, custom threaded inserts, or drawing-specific OEM fastening solutions, 

contact JUXIN FASTENERS with your engineering drawings and purchasing requirements.

Email: info@juxinfasteners.com

Website: www.juxinfasteners.com

JUXIN FASTENERS – Industrial Blind Rivet Nuts and Custom OEM Fastening Solutions.

Packaging and Delivery – Stainless Steel Thin Head Partial Hex Blind Rivet Nuts

JUXIN FASTENERS reviews packaging arrangements according to product dimensions, order quantities, handling conditions, and OEM purchasing requirements.

Packaging Requirements

• Packaging quantity: Subject to order confirmation

• Inner packaging: According to approved packing instructions

• Outer packaging: According to shipment requirements

• Product identification: Part number, thread size, and material specification as required

• Batch identification: According to agreed traceability requirements

• Custom packaging: Subject to technical and commercial confirmation

Packaging Protection

Partial hex blind rivet nuts should be protected from unnecessary mechanical damage, flange deformation, and thread contamination during handling, storage, and transportation.

Packaging should help protect the partial hexagonal body geometry and thin flange, particularly where dimensional integrity is important for installation.

OEM Supply and Documentation

For recurring OEM programs, packaging quantities, labeling, inspection documentation, material records, and delivery arrangements should be agreed upon before shipment.

Final packaging specifications are confirmed according to the approved purchase order.

For OEM packaging requirements and quotations, contact info@juxinfasteners.com.

Website: www.juxinfasteners.com