KYA N5021 is a pneumatic 16 gauge wide crown stapler designed for wire lathing, insulation, housewrap, roofing materials, crates, packaging, furniture frames and other professional construction and industrial fastening applications. It drives compatible 15/16 inch wide crown staples from approximately 16mm to 50mm long.
The N5021 weighs approximately 2.42kg, measures 360 × 76 × 254mm and holds up to 150 staples. KYA lists an operating pressure of 70–120 PSI / approximately 5–8.3 bar, together with an aluminum body, tool-free depth adjustment, cam-lock jam access, adjustable exhaust and rubberized grip.
The N5021 tool specification lists an approximately 23.8mm / 15/16 inch crown with a 1.60 × 1.40mm wire section. KYA's current GSW16 staple specification uses nominal dimensions of approximately 23.2mm with a 1.58 × 1.38mm wire section. For replacement fasteners, confirm the current production drawing and tool fit before bulk ordering.
| Specification | Details |
| Model | N5021 / KYA-N5021 |
| Tool Type | Pneumatic Wide Crown Stapler |
| Staple Gauge | 16 Gauge |
| Staple Type | GSW16 / 15/16 Inch Wide Crown Staples |
| Tool Crown Reference | Approx. 23.8mm / 15/16" |
| Staple Length Range | 16–50mm / 5/8"–2" |
| Tool Wire Reference | Approx. 1.60 × 1.40mm |
| Magazine Capacity | Approx. 150 Staples |
| Operating Pressure | 70–120 PSI / Approx. 5–8.3 bar |
| Net Weight | Approx. 2.42kg / 5.34lbs |
| Tool Dimensions | Approx. 360 × 76 × 254mm |
| Housing | Aluminum Body |
| Depth Control | Tool-Free Depth Adjustment |
| Jam Access | Cam-Lock Quick-Clear Nose |
| Exhaust | Adjustable Exhaust |
| Grip | Rubberized Grip |
| Typical Applications | Wire Lathing, Insulation, Housewrap, Roofing Materials, Packaging, Crates and Furniture Frames |
The N5021 is designed around the 16GA 15/16-inch wide crown staple format. KYA's current GSW16 staple family is available in lengths from approximately 16mm to 50mm and is intended for construction, industrial wood fastening, packaging and related applications.
KYA's current GSW16 fastener page lists a nominal crown of approximately 23.2mm with a 1.58mm wire width and 1.38mm wire thickness. The N5021 tool page uses approximately 23.8mm and 1.60 × 1.40mm. These small nominal differences should be checked against the current fastener drawing when replacing staples from another supplier.
The wide crown spreads fastening pressure across a broader area than narrow or medium crown staples. This is useful when securing wire mesh, housewrap, insulation materials and other sheet or panel materials where a wider bearing surface is required.
Crown width must match the stapler magazine and driver geometry. Other 16GA staple families can use different crown widths and should not be substituted based on gauge alone.
The N5021 drives compatible staples from approximately 16mm / 5/8 inch to 50mm / 2 inches long. The wide range allows the tool to be matched to different mesh, insulation, panel, packaging and timber thicknesses.
Staple length should be selected according to material thickness, substrate density and the required penetration. Excessive leg length can cause breakthrough, while insufficient penetration can reduce holding performance.
The N5021 tool specification uses approximately 1.60 × 1.40mm staple wire. This heavy-wire format provides substantially more wire cross-section than fine-wire upholstery staples and is intended for demanding construction and industrial fastening work.
When sourcing replacement fasteners, confirm wire dimensions together with crown width, staple length, point type and strip collation.
The N5021 magazine holds approximately 150 compatible staples per load, reducing reload frequency during repetitive lathing, insulation and industrial fastening work.
Use straight, correctly collated staple strips and keep the magazine and feed path clean. Damaged strips, incorrect fastener geometry or debris can cause feed interruptions.
Tool-free depth adjustment allows the operator to change staple penetration when moving between materials of different thicknesses and densities.
Final staple depth also depends on air pressure, staple length and substrate density. Test the tool on representative material before establishing production or installation settings.
The cam-lock nose provides access to the driver and staple path when a jam or misfeed occurs, reducing the amount of tool disassembly required for routine clearing.
Disconnect the compressed-air supply before opening the nose, removing a jammed staple or servicing internal components.
The adjustable exhaust allows discharged air to be directed away from the operator, loose insulation, dust or the finished work surface.
Normal eye protection, hearing protection and workplace ventilation should still be used where required.
The N5021 uses an aluminum body and weighs approximately 2.42kg / 5.34lbs. The tool is designed for professional pneumatic fastening applications where a 16GA wide crown staple system is required.
For repetitive work, overall operator load also depends on air-hose routing, work height, fastening frequency and working position.
KYA lists an operating pressure range of approximately 70–120 PSI / 5–8.3 bar for the N5021.
Use the lowest pressure that consistently achieves the required staple depth. Actual penetration depends on staple length, material density, air supply and the workpiece configuration.
Wire lathing is a primary application for the N5021 wide crown format. The broad crown can secure compatible metal lath or mesh to suitable wood substrates when the staple length and installation pattern meet the project requirements.
Lath systems can specify fastener material, penetration, spacing and corrosion protection. Follow the lath and wall-system installation requirements rather than selecting staples only by tool capacity.
Wide crown staplers are used for selected insulation and insulation-board fastening because the broad crown provides greater material coverage than narrow crown fasteners.
Foam board, faced insulation and other insulation systems vary in compressibility and installation requirements. Confirm that the insulation manufacturer permits mechanical staple fastening and select the appropriate staple length and spacing.
The N5021 can be used for selected housewrap and vapor-barrier installations where wide crown pneumatic staples are permitted by the membrane manufacturer.
Some weather-barrier systems require caps, washers or specific corrosion-resistant fasteners. Follow the membrane manufacturer's fastening instructions and local installation requirements.
Professional 15/16-inch wide crown staplers are used for selected roofing materials and underlayment applications where the roofing system permits this fastener type.
Roofing products can require specific fastener materials, crown dimensions, caps, spacing or installation tools. Verify the roofing manufacturer's fastening schedule before use.
The N5021 can be used for selected crate, box and industrial packaging assemblies where a 16GA wide crown staple provides the required joint strength and material coverage.
For heavy export crates or load-bearing packaging, validate the fastener length, wood species, panel thickness and joint design against the expected handling loads.
Wide crown staples can be used for selected furniture frames, cabinet frames, butt joints and internal wood assemblies where the staple geometry provides sufficient holding performance.
For highly loaded structural furniture joints or dense hardwood components, test the actual staple and substrate combination and use a heavier or different fastening system where required.
Wire lathing
Metal mesh fastening to suitable wood substrates
Foam insulation board where permitted
Faced insulation where permitted
Housewrap and vapor barriers where permitted
Selected roofing materials and underlayment
Wooden crates and boxes
Industrial packaging
Furniture frames and cabinet frames
General wide-crown industrial fastening
| Buyer Check | N5021 Reference |
|---|---|
| Staple Class | GSW16 / 15/16" Wide Crown |
| Gauge | 16GA |
| Tool Crown Reference | Approx. 23.8mm / 15/16" |
| Current KYA GSW16 Crown Reference | Approx. 23.2mm |
| Tool Wire Reference | Approx. 1.60 × 1.40mm |
| Current KYA GSW16 Wire Reference | Approx. 1.58 × 1.38mm |
| Tool Leg Range | 16–50mm / 5/8"–2" |
| Point Type | Chisel Point on Current KYA GSW16 Staples |
| Collation | Glue Collated on Current KYA GSW16 Staples |
| Material Options | Galvanized Steel, Stainless Steel or Aluminum Depending on Specification |
KYA currently lists ATRO 16 WC, BeA 140, FASCO ATW, KIHLBERG 654, NIKEMA AK, OMER WS, PREBENA WT and SPOTNAILS 16 as market references associated with its GSW16 wide crown staple geometry.
These references are useful when sourcing replacement fasteners, but they should not be treated as automatic compatibility guarantees. Confirm the exact tool model, crown, wire section, leg length and strip geometry before changing staple brands.
| Parameter | KYA N5021 | Typical Professional 15/16" Tool |
|---|---|---|
| Gauge | 16GA | 16GA |
| Crown | 15/16" | 15/16" |
| Staple Length | 16–50mm / 5/8"–2" | Commonly up to approximately 2" |
| Magazine Capacity | 150 Staples | Commonly around 150–160 Staples |
| Operating Pressure | 70–120 PSI | Commonly around 70–120 PSI |
| Primary Applications | Lathing, Insulation, Housewrap, Roofing Materials and Industrial Fastening | Similar Wide-Crown Construction and Industrial Applications |
| Issue | Possible Cause | Recommended Check |
|---|---|---|
| Air Leak at Cylinder Cap | Head valve seal or O-ring wear | Disconnect the air supply, inspect sealing components and replace damaged or worn parts according to the tool parts specification. |
| Air Leak at Trigger | Worn trigger O-ring, valve contamination or trigger stem wear | Disconnect the air supply, clean and inspect the trigger valve and replace damaged components as required. |
| Repeated Staple Jams | Incorrect staple geometry, damaged strips, worn driver or damaged guide | Confirm GSW16 dimensions, inspect staple strips, clean the feed path and replace worn or damaged driver components. |
| Staples Not Fully Driven | Low air pressure, dense substrate, unsuitable staple length or driver wear | Check pressure within the specified range, staple length, substrate density and driver condition. |
| Inconsistent Feeding | Incorrect collation, bent strip or magazine contamination | Use correctly collated staples, remove damaged strips and clean the magazine channel. |
Always disconnect the compressed-air supply before loading, clearing jams, opening the nose, inspecting internal components or servicing the stapler.
KYA supplies pneumatic wide crown staplers and GSW16 staples for lathing contractors, insulation installers, furniture manufacturers, packaging operations, industrial users, tool dealers and fastener distributors.
For bulk purchasing, provide the required tool quantity, staple length, fastener material, application and compressed-air conditions. If replacing another tool or fastener brand, include the current stapler model and staple dimensions for compatibility checking.
KYA supplies pneumatic staplers for lathing, insulation, construction, furniture, packaging and industrial fastening in multiple gauges, crown widths and staple-length ranges.
The N5021 uses compatible 16GA 15/16-inch wide crown staples in the GSW16 / WT-type fastener class.
The N5021 is listed for staple lengths from approximately 16mm to 50mm / 5/8 inch to 2 inches.
The tool specification uses a nominal 15/16-inch crown, listed at approximately 23.8mm. KYA's current GSW16 fastener page lists approximately 23.2mm. Confirm the current production drawing when exact dimensional tolerance is important.
The N5021 tool page lists approximately 1.60 × 1.40mm. KYA's current GSW16 fastener page lists approximately 1.58 × 1.38mm. Buyers replacing another staple brand should confirm the latest fastener drawing before ordering.
The magazine holds approximately 150 compatible staples.
KYA lists an operating pressure range of approximately 70–120 PSI / 5–8.3 bar.
The listed tool weight is approximately 2.42kg / 5.34lbs.
The listed dimensions are approximately 360 × 76 × 254mm.
Yes. The N5021 is listed with tool-free depth adjustment for changing staple penetration according to the material and application.
Yes. The cam-lock nose provides access to the driver area for jam clearing. Disconnect the compressed-air supply before opening or servicing the tool.
Yes. Wire lathing is a primary application for professional 15/16-inch wide crown staplers. Confirm the required staple material, penetration and spacing for the specific lath system.
It can be used for selected insulation and foam-board fastening where the insulation manufacturer permits wide crown staples. Choose staple length and spacing according to the installation requirements.
Yes, where the housewrap manufacturer permits this fastener type. Some systems require caps or other specified fasteners, so follow the membrane installation instructions.
It can be used for selected roofing materials and underlayment where a 15/16-inch wide crown staple is permitted. Follow the roofing manufacturer's fastening specification and corrosion requirements.
Yes. Wide crown heavy-wire staples are used in selected wooden crate, box and industrial packaging assemblies where the selected length and material provide sufficient joint strength.
It can be used for selected furniture frames, cabinet frames and internal wood assemblies. Highly loaded structural joints should be validated separately.
The N5021 should not be treated as a general drywall-fastening replacement for approved drywall screws or specified drywall fasteners. Use the fastening method required by the wall-system manufacturer and applicable installation requirements.
No. Nominal gauge and crown alone do not guarantee compatibility. Wire section, staple length, strip geometry, collation and magazine fit should also match the tool.
KYA currently lists galvanized steel, stainless steel and aluminum options for the GSW16 family. Select the fastener material according to the substrate, moisture exposure and project requirements.
Common causes include incorrect staple geometry, bent or damaged strips, debris in the magazine, worn driver components or damaged guide parts.
Provide the required tool quantity, staple length, fastener material, application and compressed-air conditions. If replacing another stapler or fastener brand, include the existing tool model and staple dimensions.
