KYA 3" × .120" duplex coil nails are 15-degree wire-collated smooth shank fasteners designed for temporary wood-to-wood fastening where the nail will later need to be removed. The duplex double-head design leaves the upper head accessible after installation so the fastener can be pulled during form stripping, dismantling or disassembly.
Product code KYA-3.05X75 uses a nominal .120" shank diameter and 3" length with smooth shank construction. Typical professional applications include wooden concrete forms, temporary scaffolding, construction bracing, blocking and other temporary timber assemblies.
This product is listed with a vinyl-coated bright steel finish. It should not be treated as a corrosion-resistant fastener. If the application requires corrosion protection, specify that requirement separately when requesting a quotation.
| Product Type | Duplex Coil Nail |
| Model | 3" × .120" |
| Product Code | KYA-3.05X75 |
| Nominal Length | 3" (approximately 75mm) |
| Shank Diameter | 0.120" (approximately 3.05mm) |
| Shank Type | Smooth Shank |
| Head Type | Duplex / Double Head |
| Collation | Wire Coil |
| Collation Angle | 15° |
| Point | Diamond Point |
| Material | Steel |
| Finish | Vinyl-Coated Bright Steel |
| Corrosion Resistance | Not specified as corrosion resistant |
| Primary Use | Temporary wood-to-wood fastening |
The defining feature of a duplex nail is its two-head construction. The lower head controls the installed position of the fastener while the upper head remains accessible above the work surface. This allows a hammer claw or other suitable removal tool to engage the nail during dismantling.
The secondary upper head remains accessible after the nail is driven to the lower head. This construction is intended for assemblies that are expected to be dismantled after temporary use.
The KYA-3.05X75 uses a nominal .120" smooth shank. The straight shank is suitable for temporary wood fastening where the duplex-head configuration is used to assist later removal.
The nails are wire collated in a 15-degree coil configuration for use with compatible pneumatic duplex coil nailers. Tool selection must account for the nail length, shank diameter, duplex head geometry and magazine specification.
The diamond point provides a conventional penetrating profile for driving the nail into suitable timber and wood components.
The product is listed with a vinyl-coated bright steel finish. It is intended primarily for temporary fastening applications and should not be considered a corrosion-resistant alternative to galvanized or stainless steel fasteners.
Duplex nails are designed primarily for temporary wood assemblies that will later be removed or dismantled. The second head provides an accessible removal point after installation.
Wooden concrete formwork
Precast concrete forms
Temporary wood scaffolding
Construction bracing
Temporary timber blocking
Wood blocking for trucks and rail cars
Temporary construction assemblies
Reusable timber forms
Duplex nails are intended for temporary fastening. They should not automatically be substituted for structural framing nails, permanent connectors or corrosion-resistant fasteners where those products are specified.
| Feature | Duplex Nail | Conventional Nail |
|---|---|---|
| Head Design | Two-head construction | Single head |
| Removal Access | Upper head remains accessible | Depends on installed head position |
| Typical Application | Temporary wood assemblies | Permanent or general fastening depending on nail type |
| Common Uses | Forms, scaffolding, bracing and blocking | Framing, sheathing, pallets and general construction depending on specification |
For duplex nails, product length should be interpreted carefully because the fastener has two heads. The KYA product model is specified as 3" × .120". When replacing another manufacturer's duplex fastener, buyers should compare the manufacturer's stated nail length together with overall length and head geometry rather than relying on a single nominal dimension.
| KYA Model | 3" × .120" |
| Nominal Nail Length | 3" |
| Shank Diameter | .120" / approximately 3.05mm |
| Head Configuration | Duplex / Double Head |
| Shank | Smooth |
| Point | Diamond Point |
KYA lists several shank diameters within its broader 15° smooth shank duplex coil nail range. Exact available lengths, coil quantities and finishes should be confirmed for the required configuration before ordering.
| Shank Diameter | Listed Length Range | Collation | Shank Type |
|---|---|---|---|
| .099" (approximately 2.5mm) | 1-3/4"–3" | 15° Wire Coil | Smooth |
| .113" (approximately 2.87mm) | 2"–3-1/2" | 15° Wire Coil | Smooth |
| .120" (approximately 3.05mm) | 2-1/4"–4" | 15° Wire Coil | Smooth |
| .131" (approximately 3.33mm) | 2-1/2"–4" | 15° Wire Coil | Smooth |
The exact product shown on this page is KYA-3.05X75, 3" × .120". Use the individual product code when ordering rather than relying only on the broader duplex nail series.
Duplex-head coil nails require a tool designed to accommodate the special double-head geometry. A standard 15-degree framing or siding coil nailer should not automatically be assumed to accept duplex nails even if it uses the same collation angle and shank diameter.
Professional duplex and dual-use coil nailers are available for this fastener category. Before ordering KYA-3.05X75, confirm that the tool accepts 15-degree wire-collated duplex nails with a .120" shank and the required 3" nominal nail length.
| Fastener Type | Duplex Coil Nail |
| Collation | 15° Wire Coil |
| Nominal Length | 3" |
| Shank Diameter | .120" |
| Head Type | Duplex / Double Head |
| Required Tool | Compatible duplex or dual-use 15° wire coil nailer |
| Before Ordering | Confirm tool model, accepted duplex nail length, shank diameter and head geometry |
For example, some 15-degree coil nailers support standard smooth, screw or ring shank framing nails but either do not accept duplex nails or support a different duplex length range. Providing the exact tool model is therefore important when purchasing replacement fasteners.
KYA lists this product with a vinyl-coated bright steel finish. Bright steel is not intended to provide the corrosion protection associated with galvanized or stainless steel fasteners.
Because duplex nails are commonly used for temporary construction, finish requirements can differ from permanent fastening applications. Buyers should still specify any corrosion-resistance requirement before ordering if the fasteners will be exposed to moisture or other corrosive conditions.
For accurate product matching and quotation, provide the required nail length, shank diameter, finish, purchasing quantity, duplex nailer manufacturer and model, application and delivery destination.
For the product shown on this page, reference KYA-3.05X75 and specify 3" × .120", smooth shank, duplex head and 15° wire coil.
| Product Code | KYA-3.05X75 |
| Nominal Size | 3" × .120" |
| Shank | Smooth |
| Head | Duplex / Double Head |
| Collation | 15° Wire Coil |
| Finish | Vinyl-Coated Bright Steel |
| Primary Application | Temporary wood-to-wood fastening |
| Inquiry Information | Quantity, tool model, application, finish requirements and delivery destination |
A duplex nail has two heads. The lower head controls the installed position while the upper head remains accessible so the nail can be pulled when a temporary wood assembly is dismantled.
The KYA-3.05X75 is specified as a 3" × .120" smooth shank duplex coil nail. The .120" shank diameter is approximately 3.05mm.
The second head provides an accessible pulling point after installation. This is useful for temporary formwork, scaffolding, blocking and bracing that will later be removed.
Typical applications include wooden concrete forms, precast concrete formwork, temporary scaffolding, construction bracing, temporary blocking and other removable timber assemblies.
The KYA duplex nail uses 15-degree wire coil collation for compatible pneumatic duplex coil nailers.
No. A standard coil nailer may not accommodate the duplex double-head geometry. The tool must specifically support the required duplex fastener dimensions, including the 3" nominal length and .120" shank diameter.
The SCN60XP family supports certain 15-degree duplex smooth shank coil nails, but published duplex length ranges depend on the tool configuration. Because the KYA product shown here is 3" long, confirm the exact tool version and accepted duplex fastener length before ordering.
The product shown on this page is listed as vinyl-coated bright steel and is not specified as corrosion resistant. If corrosion protection is required, state the environment and required finish when requesting a quotation.
A duplex nail has a second head intended to remain accessible for removal and is primarily used in temporary construction. A conventional framing nail normally has a single head and is selected for permanent framing or structural fastening according to the applicable specification.
Provide the required duplex nail size, quantity, nailer manufacturer and model, intended application, finish requirements and delivery destination. Reference KYA-3.05X75 for this 3" × .120" smooth shank version.
