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KYA 3.5×40mm stainless steel plastic collated nail screws combine a threaded fastener body with a coil-fed format for compatible pneumatic nail-screw systems. The featured model is KYA-3.5x40SS, with a nominal diameter of 3.5mm / approximately 0.138 inch and length of 40mm / approximately 1-9/16 inch.
This product uses 15° plastic sheet collation and is supplied as a stainless steel nail-screw for professional fastening applications. The current KYA product family lists Phillips, Torx, Pozi and Square drive configurations together with fine and coarse thread options. This page focuses on the Phillips-head 3.5×40mm stainless steel configuration.
Plastic collated nail screws are used where buyers want powered coil feeding together with a threaded fastener that can provide mechanical engagement in wood and, with the correct drive recess, allow subsequent adjustment or removal.
3.5×40mm size: compact threaded nail-screw configuration for suitable wood, panel and assembly applications.
15° plastic sheet collation: designed for compatible plastic-collated coil nail-screw feeding systems.
Stainless steel: corrosion-resistant fastener material for applications where ordinary carbon steel is not preferred.
Phillips drive: allows engagement with a matching driver bit for adjustment or removal after installation.
Threaded shank: provides mechanical engagement with suitable substrate material.
Sharp point: assists initial penetration; substrate suitability should be confirmed before production use.
Additional drive options: Torx, Pozi and Square configurations are listed within the broader KYA coil nail-screw family.
Fine and coarse thread options: select according to substrate, application and required fastening behavior.
Request 3.5×40mm Nail Screw Pricing
| Parameter | Specification |
|---|---|
| KYA Code | KYA-3.5x40SS |
| Product Type | Plastic Collated Nail Screw / Coil Nail-Screw |
| Nominal Diameter | 3.5mm / approximately 0.138" |
| Length | 40mm / approximately 1-9/16" |
| Material | Stainless Steel |
| Stainless Options | KYA lists 304 and 316 stainless steel within this product family; confirm exact grade for KYA-3.5x40SS when ordering |
| Featured Drive | Phillips |
| Other Listed Drive Options | Torx / Pozi / Square; confirm availability for the required size |
| Thread | Fine or Coarse |
| Point | Sharp / Self-Tapping Style Point |
| Collation | Plastic Sheet Coil |
| Collation Angle | 15° Class |
| Coil Quantity | KYA lists approximately 200–300 fasteners per coil within the product family; confirm exact KYA-3.5x40SS packing |
Drive type, stainless grade, thread geometry and coil quantity should be confirmed for the exact production lot before purchasing because these options can vary within the wider nail-screw family.
A nail screw is a hybrid fastening format with a nailer-compatible body and a threaded shank. It is installed using a compatible powered fastening system rather than being driven manually like a conventional loose screw.
The drive recess in the head provides an additional advantage after installation: where the specific fastener and application permit, a matching bit can be used for adjustment or removal. This distinguishes a driven nail-screw from a conventional coil nail without a drive recess.
The KYA-3.5x40SS uses a 15° plastic sheet coil format. Plastic collation holds multiple fasteners in a continuous coil so they can be automatically indexed through a compatible pneumatic fastening tool.
Plastic sheet nail-screw systems should not be confused with ordinary 15° wire-welded coil nails. Tool magazines, feed mechanisms, driver geometry and supported fastener profiles can differ even when the nominal collation angle is similar.
The featured KYA-3.5x40SS product uses a Phillips-style drive recess. The recess allows a matching bit to engage the head when subsequent adjustment or removal is required.
Use the correct bit size and avoid excessive torque during removal or adjustment. Drive performance depends on recess geometry, bit fit, substrate and installation conditions.
| Drive | General Characteristic | Ordering Note |
|---|---|---|
| Phillips | Cross-shaped drive commonly used with matching PH bits. | Featured configuration on this product page. |
| Torx | Star-shaped recess designed for positive bit engagement. | Listed within the wider KYA nail-screw family; confirm exact size availability. |
| Pozi | Cross-drive system requiring the corresponding Pozi bit. | Confirm exact configuration before ordering. |
| Square | Square recess used with a matching square-drive bit. | Available on selected nail-screw configurations. |
Fine-thread nail screws use a closer thread pitch. Select the thread geometry according to the substrate, required installation behavior and finished joint.
Coarse threads have wider thread spacing and are used in selected wood and panel fastening applications. Performance depends on substrate density, penetration and the complete thread geometry.
The KYA product information describes this fastener with a sharp self-tapping style point. A sharp point assists initial penetration, but pre-drilling requirements depend on the actual substrate, material hardness, edge distance and fastener geometry.
Do not assume that pre-drilling is unnecessary in every hardwood, composite, sheet-metal or edge-fastening application. Test the intended substrate before volume installation.
| Stainless Grade | General Characteristic | Selection Guidance |
|---|---|---|
| 304 / A2 | Common corrosion-resistant stainless grade used for many exterior and moisture-exposed fasteners. | Suitable where the specified environment and project requirements permit A2 / 304 stainless. |
| 316 / A4 | Higher resistance to chloride-related corrosion than 304 in many service environments. | Consider for coastal, marine or higher-chloride exposure when A4 / 316 is required by the project specification. |
Stainless steel should be described as corrosion resistant rather than universally rust-proof. Actual corrosion performance depends on stainless grade, chloride concentration, temperature, contamination and service conditions.
KYA-3.5x40SS should be used only with a fastening tool designed to accept the corresponding 15° plastic-sheet collated nail-screw format. A conventional coil nailer that accepts ordinary wire-welded nails should not automatically be assumed compatible.
| Compatibility Check | Requirement |
|---|---|
| Fastener Type | Tool must support plastic-collated nail screws, not only conventional coil nails. |
| Collation | 15° plastic sheet coil format. |
| Diameter | Tool must accept the complete 3.5mm threaded fastener profile. |
| Length | Tool must accept approximately 40mm fasteners. |
| Head Geometry | Magazine, guide and driver must match the nail-screw head profile. |
| Plastic Carrier | Feed system must be designed for the plastic collation geometry. |
For purchasing, provide the exact fastening-tool manufacturer and model so the corresponding collation, length, diameter and head configuration can be checked before bulk use.
The term “15°” describes only one part of the fastener system. Tools can differ in wire-weld versus plastic-sheet collation, nail diameter, head geometry, magazine design, feeder geometry and driver profile.
A standard 15° wire-coil nailer may therefore be unsuitable for a plastic-collated threaded nail-screw even if both products use a similar nominal angle.
Decking and deck-related timber assemblies where the selected fastener size is suitable
Plywood and OSB subfloor fastening
Wood siding and cladding applications
Wood fencing and fence components
Selected sheathing applications
Cabinet and furniture frames
Manufactured housing and general woodworking
Selected thin-sheet fastening where the point and substrate specification are suitable
Plastic-collated nail screws are used in professional decking systems because they can combine powered installation with a threaded fastener profile. Stainless steel is relevant where outdoor moisture and corrosion resistance are part of the application requirement.
The correct fastener length, diameter, head style and stainless grade depend on the decking board, substrate, environmental exposure and applicable installation specification. The 40mm KYA model should not be treated as suitable for every deck construction.
Threaded nail screws can be used in suitable plywood and OSB subfloor assemblies where their dimensions and fastening characteristics meet the floor-system requirements.
Where squeak reduction, withdrawal resistance or structural capacity are specified, use the fastener required by the flooring system, building design or engineering documentation rather than relying only on a generic product description.
Stainless nail screws can be considered for suitable siding and fencing applications where corrosion-resistant fasteners are required. Confirm fastener dimensions, head style and grade with the siding, cladding or fencing specification.
For coastal or chloride-rich environments, 316 / A4 stainless steel may provide greater corrosion resistance than 304 / A2, but the required material should be selected from the actual exposure and project requirements.
KYA's current product information also identifies the sharp-point configuration for selected thin-sheet fastening and references sheet thickness up to approximately 0.9mm.
This should be treated as an application reference rather than a universal drilling capacity. Confirm the exact point geometry, metal type, thickness, supporting material and tool configuration before production use.
| Selection Item | What to Confirm |
|---|---|
| Diameter | Confirm whether the 3.5mm fastener profile matches the tool and application. |
| Length | Select length from material thickness and required substrate penetration. |
| Stainless Grade | Specify 304 / A2 or 316 / A4 according to exposure requirements. |
| Drive | Specify Phillips, Torx, Pozi or Square as required. |
| Thread | Confirm fine or coarse thread according to the substrate and assembly. |
| Tool | Provide exact make and model of the 15° plastic-sheet nail-screw tool. |
| Application | Identify decking, subfloor, siding, fencing, furniture, thin sheet or other use. |
| Environment | Identify indoor, exterior, coastal, marine, high-chloride or other exposure where relevant. |
| Order Detail | Required Information |
|---|---|
| Product Code | KYA-3.5x40SS. |
| Size | 3.5×40mm. |
| Material | Confirm required stainless grade. |
| Drive | Phillips featured; confirm if Torx, Pozi or Square is required. |
| Thread | Fine or coarse. |
| Tool Model | Provide exact pneumatic tool make and model. |
| Application | Provide substrate and intended fastening application. |
| Coil Packing | Confirm required fasteners per coil and cartons required. |
| Quantity | Provide required cartons, pallets or estimated annual demand. |
Discuss Your Stainless Nail Screw Requirement
The nominal size is 3.5mm diameter × 40mm length, approximately 0.138" × 1-9/16".
It is a nail-screw hybrid: a threaded fastener designed for powered collated installation, with a drive recess that can allow later adjustment or removal.
The product uses a 15° plastic sheet coil configuration.
This product page focuses on the Phillips-head configuration. Other drive styles are available within the broader KYA nail-screw family.
KYA lists Torx configurations within its plastic collated nail-screw range. Confirm the exact 3.5×40mm Torx configuration before ordering.
KYA currently lists 304 and 316 stainless options within the product family. Confirm the exact stainless grade required for KYA-3.5x40SS in the quotation.
Both are corrosion-resistant stainless grades. 316 / A4 generally offers greater resistance to chloride-related corrosion than 304 / A2 and is often considered for more aggressive coastal or marine exposure.
No. Stainless steel is corrosion resistant, but chloride concentration, contamination, temperature and service conditions can still cause corrosion. Select the appropriate stainless grade for the environment.
No. A salt-spray result is meaningful only when the tested material, test method, standard and acceptance criteria are identified. It should not be treated as a universal guarantee of field life in marine environments.
Collated powered installation can improve productivity in repetitive fastening, but actual installation speed depends on the tool, operator, substrate, fastener spacing and workflow. A fixed two-times improvement should not be assumed for every job.
No drive system should be described as impossible to cam out. Correct bit fit, recess quality and applied torque affect driver engagement.
Not in every material. Softwood and some panel products may not require pre-drilling, while hardwood, brittle materials, edge fastening or special substrates may require a pilot hole or another fastener configuration.
The drive recess can allow adjustment or removal with a matching bit where the installed fastener remains accessible and the joint conditions permit removal.
It can be considered for decking applications where the 3.5×40mm size, head, thread and stainless grade meet the deck-system requirements. Confirm required penetration before use.
Yes, in suitable assemblies where the fastener size and joint specification permit its use. Structural or rated floor assemblies should use the fastener specified by the system or engineer.
KYA's current product information references selected thin-sheet fastening up to approximately 0.9mm. Actual capability depends on steel grade, sheet thickness, point geometry, support and installation tool, so test the intended assembly before production.
Do not assume compatibility. The SCN60XP is published for 15° flat wire-welded coil nails, while KYA-3.5x40SS is a plastic-sheet collated threaded nail-screw.
Do not assume compatibility. SCN65XP is also specified for wire-welded coil nails and uses a different fastener system from this plastic-collated nail-screw.
Do not assume compatibility. CN890F is a wire-collated coil nailer, and its published fastener range differs from the KYA 3.5×40mm plastic-collated nail-screw format.
NV75AG supports selected plastic-sheet collated nails, but its published plastic-sheet fastener dimensions do not establish compatibility with the 3.5×40mm KYA nail-screw. Confirm the exact tool and fastener geometry before use.
Use a pneumatic fastening system specifically designed for the corresponding 15° plastic-sheet collated nail-screw format and capable of accepting the exact 3.5×40mm fastener geometry.
KYA currently lists approximately 200–300 fasteners per coil within this nail-screw family. Confirm the exact count for KYA-3.5x40SS before ordering.
Mechanical-performance values should only be applied when they come from testing of the exact fastener material, dimensions, substrate and test method. Request the applicable test report when engineered performance is required.
Use it in structural or load-rated connections only when the exact KYA fastener is covered by the required engineering data, approval or project specification. A threaded shank alone does not establish structural capacity.
Provide the fastening-tool manufacturer and model, required stainless grade, drive type, thread type, substrate, application, coil quantity and purchase volume.
KYA supplies 3.5×40mm 15° stainless steel plastic collated nail screws for fastener distributors, construction suppliers, decking and flooring contractors, woodworking manufacturers and other professional users. Provide the exact tool model, stainless grade, drive, thread and application so the appropriate configuration can be confirmed before ordering.
KYA lists a free 200-piece sample coil, with freight paid by the recipient. The stated minimum order quantity is 1 carton, the listed lead time is 15–25 days, and OEM branding is available. Confirm sample availability, lead time, carton configuration and branding requirements when requesting a quote.
KYA lists 304 and 316 stainless options, SGS certification and full test reports for its supply program, plus a 48+ hour salt-spray test result. Salt-spray hours alone do not establish service life in a specific environment. Request current certification documents, the test method and the stainless grade for the selected order.
