High-Strength Stainless Steel Locking-Collar Rivets (Lockbolts)

High-Strength Stainless Steel Locking-Collar Rivets and Ring-Groove Lockbolts for OEM Structural Assemblies

Product Overview

JUXIN FASTENERS supplies stainless steel locking-collar rivets, also known as stainless steel lockbolts or ring-groove pin-and-collar fasteners, for industrial OEM manufacturing and permanent mechanical assemblies.

JUXIN Product Reference: JX-D-L-SS

This product family is identified in the original JUXIN documentation as a stainless steel fastening system. Its principal components are a grooved stainless steel pin and a compatible stainless steel locking collar.

During installation, dedicated tooling draws the joint together and swages the collar into the locking grooves of the pin. The resulting mechanical engagement creates a permanent connection.

Unlike conventional blind rivets, typical two-piece locking-collar rivets require access to both sides of the assembled materials.

Stainless steel lockbolts may be evaluated for industrial applications involving corrosion exposure, vibration, repeated loading and permanent fastening, provided the selected configuration meets the applicable engineering requirements.

The actual stainless steel grades, dimensions, mechanical properties, installation tooling and performance requirements must be verified against the approved product specification.

Product Identification and Specifications

Main Product Characteristics

The stainless steel ring-groove fastening system offers the following design characteristics, subject to the selected product configuration:

• Stainless steel pin-and-collar construction

• Permanent mechanical locking through collar swaging

• Ring-groove engagement

• Two-sided installation

• Dedicated installation tooling

• Defined grip range

• Compatibility with approved industrial joint designs

• Potential suitability for corrosion-sensitive environments

• Application-specific vibration and fatigue performance

• Drawing-based OEM technical review

No numerical mechanical performance or universal environmental rating is claimed without supporting product data.

Engineering Solution 1 — Understanding the Pin-and-Collar System

A typical stainless steel locking-collar fastener consists of two primary components.

Stainless Steel Lockbolt Pin

The pin passes through the mounting holes of the connected components.

Depending on the design, it may include:

• Formed head

• Load-bearing shank

• Grip section

• Locking grooves

• Installation gripping section

• Designed breakneck or alternative installation feature

Stainless Steel Locking Collar

The collar is positioned on the opposite side of the joint.

During installation, the collar is plastically deformed into the pin grooves to form the locking connection.

The pin and collar must be engineered as compatible components.

Their materials, hardness, dimensions and installation requirements should be specified separately.

Engineering Solution 2 — How Stainless Steel Lockbolts Work

The general installation process involves:

1. Preparing the mounting holes.

2. Aligning the components to be joined.

3. Inserting the stainless steel pin through the assembly.

4. Positioning the compatible stainless steel collar.

5. Engaging the approved installation tool.

6. Drawing the joint together.

7. Swaging the collar into the locking grooves.

8. Completing the specified installation cycle.

9. Inspecting the installed connection.

The installation mechanism differs from that of a conventional blind rivet.

A blind rivet generally forms a retaining section on the inaccessible side of a joint.

A two-piece lockbolt instead relies on the mechanical engagement of a separate collar with the pin grooves.

Engineering Solution 3 — Ring-Groove Mechanical Engagement

The locking grooves are critical to the fastening mechanism.

During installation, the collar material flows into the groove profile under the action of the swaging tool.

The resulting engagement transfers load between the pin and collar.

Important parameters include:

• Pin diameter

• Groove diameter

• Groove profile

• Groove spacing

• Collar internal dimensions

• Collar material properties

• Swaging force

• Installed collar dimensions

• Grip range

Pins and collars from different systems should not be considered interchangeable without engineering verification.

Engineering Solution 4 — Stainless Steel Pin and Collar Material Selection

The original JUXIN description identifies stainless steel components.

It also refers to the legacy material designations 0Cr18Ni9 and 1Cr18Ni9.

However, these descriptions alone do not establish the actual certified grades of JX-D-L-SS.

Before quotation or production, engineers should confirm:

• Pin alloy designation

• Collar alloy designation

• Applicable material standard

• Material condition

• Mechanical properties

• Hardness

• Surface finish

• Material traceability

The pin and collar may require different material characteristics.

The pin must provide the required mechanical capacity, while the collar must deform correctly during swaging and maintain mechanical engagement.

Engineering Solution 5 — 304 vs. 316 Stainless Steel

AISI 304 and AISI 316 are commonly encountered stainless steel grades in industrial fastening applications.

However, the original JUXIN documentation does not establish that JX-D-L-SS is available in either grade.

These alloys differ in chemical composition and corrosion behavior.

For chloride-containing or chemically aggressive environments, material selection should be based on actual exposure conditions.

The correct grade should be confirmed before specifying or quoting the product.

No AISI 304, AISI 316, A2 or A4 grade is claimed without verification.

Engineering Solution 6 — Corrosion Resistance

Stainless steel may offer useful corrosion resistance in suitable service environments.

However, stainless steel is not corrosion-proof.

Potential concerns include:

• Pitting corrosion

• Crevice corrosion

• Galvanic corrosion

• Chloride exposure

• Chemical exposure

• Surface contamination

• Corrosion associated with trapped moisture

The pin, collar and connected components should be evaluated as a complete assembly.

No salt spray rating or corrosion service life is claimed without supporting test data.

Engineering Solution 7 — Galvanic Corrosion in Mixed-Metal Assemblies

Stainless steel lockbolts may be installed in assemblies containing aluminum, carbon steel or other metals.

Where dissimilar metals are electrically connected in the presence of an electrolyte, galvanic corrosion may occur.

Engineering review should consider:

• Pin and collar alloys

• Mating material

• Electrical contact

• Moisture exposure

• Surface treatments

• Drainage

• Protective isolation measures

A stainless steel fastener does not automatically eliminate corrosion risk in a mixed-metal joint.

Engineering Solution 8 — Stainless Steel Galling and Installation

Stainless steel components may be susceptible to adhesive wear or galling under certain contact conditions.

Although lockbolts use swaged collars rather than conventional threaded nuts, contact behavior and installation friction still require consideration.

Relevant factors include:

• Alloy combination

• Surface finish

• Component hardness

• Tooling geometry

• Installation force

• Approved lubrication or surface treatment, where specified

Any lubrication or coating must be compatible with the qualified installation procedure.

Engineering Solution 9 — Shear Strength

Shear loading acts across the fastener and joint interface.

The shear performance of a stainless steel lockbolt depends on:

• Pin diameter

• Pin material

• Pin geometry

• Shear-plane location

• Joint thickness

• Hole dimensions

• Installation quality

The connected components must also be evaluated for bearing deformation, edge tear-out and other joint failure mechanisms.

No numerical shear capacity is claimed without verified product data.

Engineering Solution 10 — Tensile Strength

Tensile loading acts primarily along the fastener axis.

Potential failure mechanisms include:

• Pin fracture

• Collar deformation

• Collar disengagement

• Head-side pull-through

• Panel deformation

• Local material failure

The tensile capacity must be established for the complete pin-and-collar system.

A stainless steel pin material designation alone is insufficient to establish installed tensile performance.

Engineering Solution 11 — Clamp Force and Joint Integrity

The installation process draws the connected components together while the collar is swaged into the pin grooves.

The resulting clamp behavior depends on:

• Pin geometry

• Collar geometry

• Material properties

• Joint thickness

• Surface condition

• Tooling

• Installation force

• Joint relaxation

No specific clamp force or preload value is claimed without verified test results.

Engineering Solution 12 — Vibration Resistance

Lockbolts are widely used as a fastening concept in applications where permanent mechanically locked joints are desirable.

However, the vibration performance of JX-D-L-SS must be evaluated for the actual joint.

Important factors include:

• Joint stiffness

• Collar engagement

• Clamp retention

• Cyclic loading

• Hole fit

• Fastener spacing

• Fatigue

• Installation quality

Vibration resistance should not be interpreted as a guarantee against every type of dynamic failure.

Engineering Solution 13 — Fatigue Performance

Industrial machinery and transportation equipment may subject fastened joints to repeated loading.

Fatigue performance depends on the complete assembly.

Engineering evaluation should consider:

• Applied load spectrum

• Pin diameter

• Stainless steel grade

• Joint geometry

• Material thickness

• Hole quality

• Edge distance

• Fastener spacing

• Corrosion exposure

Representative joint testing is required where fatigue performance is critical.

Engineering Solution 14 — Thermal Expansion and Contraction

Industrial assemblies may experience temperature changes during operation.

Differences in thermal expansion between the fastener and connected components can affect joint loading.

Relevant parameters include:

• Pin alloy

• Collar alloy

• Mating materials

• Temperature range

• Thermal cycling

• Joint stiffness

• Clamp relaxation

No universal operating temperature range is claimed.

Engineering Solution 15 — Grip Range Selection

The grip range identifies the permitted combined thickness of the connected components.

Engineers should verify:

• Minimum material thickness

• Maximum material thickness

• Pin length

• Collar engagement

• Available locking grooves

• Installation clearance

• Final pin projection

Incorrect grip selection may prevent proper collar swaging or acceptable joint formation.

Engineering Solution 16 — Mounting-Hole Dimensions

Hole preparation is important for mechanical performance and installation consistency.

Relevant factors include:

• Hole diameter

• Hole tolerance

• Hole alignment

• Burr condition

• Edge distance

• Fastener spacing

• Joint gap

• Surface condition

Oversized or damaged holes require engineering evaluation.

The lockbolt should not be used to compensate for unacceptable hole conditions without approval.

Engineering Solution 17 — Break-Pintail and Pintail-Less Designs

Ring-groove lockbolts are available in different installation configurations.

Break-Pintail Designs

Certain systems use a pulling section that breaks at a designated location after the required installation sequence.

Pintail-Less Designs

Other systems complete collar swaging without breaking off a conventional installation tail.

Huck BobTail is an example of a proprietary pintail-less fastening system.

The JUXIN JX-D-L-SS product must be checked against its actual drawing before assigning either installation method.

Huck Magna-Grip and Huck BobTail are proprietary product names and should not be used to imply product equivalence.

Engineering Solution 18 — Installation Tooling

Stainless steel locking-collar rivets require compatible installation equipment.

Tool selection should consider:

• Pin diameter

• Collar diameter

• Groove geometry

• Required pulling force

• Swaging force

• Tool stroke

• Nose assembly

• Working clearance

• Production cycle time

• Tool maintenance

• Operator safety

A conventional blind-rivet tool should not be assumed compatible.

The actual tool and nose assembly must be matched to the approved pin-and-collar system.

Typical Installation Procedure

1. Confirm the approved pin and collar part numbers.

2. Verify the stainless steel material specifications.

3. Check the complete joint stack-up.

4. Select the correct grip range.

5. Prepare aligned mounting holes within approved tolerances.

6. Remove burrs and inspect the joint surfaces.

7. Insert the stainless steel pin through the assembly.

8. Position the compatible collar on the opposite side.

9. Select the approved installation tool and nose assembly.

10. Engage the tool with the pin.

11. Activate the tool according to the approved procedure.

12. Complete the specified collar swaging operation.

13. Complete the pintail break if required by the selected design.

14. Release the tool.

15. Inspect the collar, pin projection and joint condition.

16. Verify installation against the approved acceptance criteria.

Pintail-less systems must follow their own installation procedures.

Engineering Solution 19 — Production Quality Control

For production managers and manufacturing engineers, repeatable installation requires controlled materials, tooling and inspection.

Important quality-control items include:

• Approved pin part number

• Approved collar part number

• Stainless steel grade verification

• Dimensional inspection

• Hole diameter

• Grip range

• Collar orientation

• Tool identification

• Nose assembly condition

• Swage completion

• Installed collar dimensions

• Pin projection

• Pintail break condition, where applicable

• Joint gap

• Surface condition

• Material traceability

Production trials should be completed before high-volume manufacturing where required.

Engineering Solution 20 — Metric and Inch Size References

Common industrial lockbolt diameter references include:

These are general dimensional references, not confirmed available sizes for JX-D-L-SS.

Actual pin diameters, hole sizes, collars and installation tooling must be verified before substituting metric and inch-designated fasteners.

Industrial Applications and Engineering Solutions

Stainless steel locking-collar rivets may be evaluated for industrial assemblies requiring permanent mechanical fastening and suitable corrosion resistance.

The following are potential engineering applications, not product-specific certifications or approvals.

1. Industrial Stainless Steel Structures

Stainless steel structures may require permanent pin-and-collar fastening where the approved design permits two-sided installation.

Material compatibility, mechanical performance and corrosion requirements must be evaluated.

2. Commercial Vehicle Manufacturing

Commercial vehicle manufacturers may evaluate stainless steel lockbolts for selected structural or auxiliary assemblies.

Fatigue, vibration and environmental exposure must be considered.

3. Trailer and Transport Equipment

Trailers and transport equipment may incorporate corrosion-sensitive metal joints.

Stainless steel lockbolts may be considered where permanent fastening and suitable mechanical performance are required.

4. Rail Equipment

Rail equipment may use approved locking-collar fastening systems in structural or auxiliary assemblies.

Fatigue, vibration, traceability and project-specific requirements must be reviewed.

5. Industrial Machinery Frames

Industrial machinery may use stainless steel frames, brackets and mechanical supports.

Lockbolt selection should account for joint stiffness, dynamic loading and maintenance requirements.

6. Food Processing Equipment

Food-processing equipment may incorporate stainless steel frames and non-product-contact structural components.

Material selection must consider cleaning chemicals, crevice corrosion and hygienic design requirements.

No food-contact or hygienic certification is implied.

7. Pharmaceutical Equipment

Pharmaceutical manufacturing equipment may contain stainless steel support frames and auxiliary structures.

Cleanability, corrosion, traceability and equipment-specific requirements must be evaluated.

8. Medical Equipment Housings

Medical equipment may use stainless steel frames, covers and support assemblies.

Stainless steel lockbolts may be considered for approved non-patient-contact mechanical connections.

No medical-device certification is implied.

9. Semiconductor Manufacturing Equipment

Semiconductor equipment may incorporate stainless steel frames and structural supports.

Cleanliness, particle generation, corrosion and serviceability must be evaluated.

10. AI Data Center Infrastructure

AI data centers may contain equipment support structures, power-system frames and auxiliary mechanical assemblies.

Stainless steel lockbolts may be considered where corrosion resistance and permanent two-sided fastening are appropriate.

11. Liquid Cooling Equipment Frames

Liquid cooling equipment may use stainless steel support frames and protective structures.

Lockbolts may be evaluated for suitable non-pressure-boundary connections.

No coolant containment or pressure-sealing qualification is implied.

12. Electrical Equipment Cabinets

Industrial electrical cabinets may use stainless steel frames, brackets and protective structures.

Mechanical fastening requirements and electrical bonding must be evaluated separately.

13. Power Distribution Equipment

Power distribution equipment may incorporate stainless steel structural supports and auxiliary assemblies.

Lockbolt selection must meet the applicable mechanical and electrical design requirements.

14. Energy Storage Systems

Energy storage equipment may contain corrosion-sensitive frames and protective structures.

Stainless steel lockbolts may be evaluated for suitable mechanical connections.

Electrical isolation, thermal exposure and vibration requirements must be considered.

15. Renewable Energy Equipment

Renewable energy installations may incorporate outdoor stainless steel supports and equipment frames.

Corrosion, fatigue and long-term environmental exposure must be evaluated.

16. Marine Auxiliary Equipment

Marine equipment may use stainless steel frames and support assemblies.

Chloride exposure, crevice corrosion and galvanic compatibility must be considered.

No marine structural or seawater pressure-boundary approval is implied.

17. HVAC Equipment

Industrial HVAC equipment may contain stainless steel frames, brackets and auxiliary structures.

Condensation, vibration and corrosion requirements must be reviewed.

18. Telecommunications Equipment

Telecommunications equipment may incorporate outdoor stainless steel frames and equipment supports.

Moisture exposure, corrosion and serviceability should be considered.

19. Agricultural Equipment

Agricultural machinery may use stainless steel brackets and corrosion-sensitive auxiliary assemblies.

Vibration, contamination and environmental exposure must be evaluated.

20. Custom OEM Metal Fabrication

OEM manufacturers may specify stainless steel locking-collar rivets according to approved drawings, material requirements, mechanical performance and annual production demand.

Application Selection Matrix

Common Installation Problems and Engineering Checks

International Standards and Technical Qualification

Stainless steel lockbolts may be specified using manufacturer technical specifications, customer-approved drawings and applicable industry standards.

The term locking-collar rivet does not identify one universal standard covering every pin-and-collar system.

Different products may use different:

• Pin geometries

• Groove profiles

• Collar configurations

• Stainless steel grades

• Head styles

• Grip ranges

• Installation procedures

• Mechanical performance requirements

Where ISO, DIN, EN, ASTM, SAE or customer-specific requirements apply, conformity must be verified against the actual fastener.

Huck Magna-Grip, Huck BobTail and Huck C6L are proprietary fastening systems. Generic ring-groove terminology does not establish interchangeability or equivalence.

No unverified standard conformity, proprietary equivalence or certification is claimed.

OEM Procurement and Supplier Development

For purchasing managers, supply chain managers, production managers and engineers, stainless steel lockbolts should be sourced as complete, compatible fastening systems.

A technical RFQ should identify:

• Pin drawing

• Collar drawing

• Pin stainless steel grade

• Collar stainless steel grade

• Material condition

• Pin diameter and length

• Head style

• Groove configuration

• Grip range

• Mounting-hole dimensions

• Required shear strength

• Required tensile strength

• Clamp and fatigue requirements

• Corrosion environment

• Installation tooling

• Inspection and traceability

• Expected order volume

• Annual demand forecast

Purchasing teams should confirm whether quotations include pins only, collars only or matched pin-and-collar assemblies.

Total installed cost should consider component pricing, tooling, installation cycle time, inspection and maintenance.

Frequently Asked Questions

What are stainless steel locking-collar rivets?

They are two-piece mechanical fasteners consisting of a grooved stainless steel pin and a compatible stainless steel locking collar.

Are stainless steel locking-collar rivets also called lockbolts?

Yes. Stainless steel lockbolts is a recognized engineering description for this type of fastening system.

Are stainless steel lockbolts the same as blind rivets?

No. Typical two-piece lockbolts require access to both sides of the joint, while conventional blind rivets are installed from one side.

Are stainless steel lockbolts available in 304 or 316?

The actual grades available for JX-D-L-SS must be confirmed. The original documentation does not establish verified 304 or 316 supply specifications.

Are the pin and collar made from the same stainless steel grade?

Not necessarily. Their material requirements should be specified separately.

Are stainless steel lockbolts corrosion-proof?

No. Corrosion resistance depends on the actual alloys, environment and joint design.

Can stainless steel lockbolts be used with aluminum panels?

Potentially, but joint strength and galvanic corrosion risks must be evaluated.

Do all lockbolts break off a pintail during installation?

No. Break-pintail and pintail-less systems use different installation mechanisms.

Are these rivets equivalent to Huck BobTail or Magna-Grip?

Equivalence has not been established. Any proposed substitution requires engineering verification.

Can JUXIN review custom stainless steel lockbolt drawings?

Customers may submit drawings, material specifications, dimensions, mechanical requirements and annual demand for technical evaluation and quotation.

Request a Stainless Steel Locking-Collar Rivet OEM Quotation

JUXIN FASTENERS supplies industrial fastening solutions for OEM manufacturing, industrial machinery and corrosion-sensitive metal assemblies.

Please provide the following information for technical review:

• JUXIN reference: JX-D-L-SS

• 2D engineering drawing or 3D CAD model

• Pin stainless steel grade

• Collar stainless steel grade

• Material condition

• Pin diameter and length

• Head geometry

• Ring-groove profile

• Grip range

• Mounting-hole diameter and tolerance

• Required shear strength

• Required tensile strength

• Clamp and fatigue requirements

• Break-pintail or pintail-less design

• Installation tooling and nose assembly

• Corrosion and environmental requirements

• Inspection and traceability requirements

• Pin and collar supply quantities

• Expected annual demand

• Packaging specifications

• Target delivery schedule

Email: info@juxinfasteners.com

Website: https://www.juxinfasteners.com/

JUXIN FASTENERS — Stainless Steel Locking-Collar Rivets and Ring-Groove Lockbolts for Global OEM Manufacturing.

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.