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KYA 14 Gauge ST18 Concrete T Nails are galvanized high-carbon steel T nails for compatible pneumatic concrete nailers. The featured ST18 size is 18mm long, commonly identified in this product system as a nominal 3/4-inch concrete T nail.
The current KYA ST18 specification lists a 5.9–6.1mm head width, 2.07–2.1mm shank diameter, 1.4–1.5mm head thickness, galvanized finish and 0-degree glue collation. Standard published packing is 40 nails per stick and 1,000 nails per box.
ST18 belongs to KYA's broader ST Series concrete T-nail family, with the current detailed size table running from ST18 at 18mm to ST64 at 64mm. Select the exact nail according to the nailer specification, material being attached, substrate and required fastening depth.
| Specification | Details |
|---|---|
| Product Type | Concrete T Nail / Collated Concrete Nail |
| Model | ST18 |
| Series | ST Series Concrete T Nails |
| Gauge | 14 Gauge |
| Primary Length | 18mm / nominal 3/4" |
| Material | High-Carbon Steel |
| Finish | Galvanized |
| Head Width | 5.9–6.1mm |
| Shank Diameter | 2.07–2.1mm |
| Head Thickness | 1.4–1.5mm |
| Color | Silver or Yellow according to the current product specification |
| Collation | Glue-Collated, 0-Degree Straight Strip |
| Nails per Stick | 40 pcs |
| Nails per Box | 1,000 pcs |
| Point Type | Not specified on the current ST18 product page |
| Shank Profile | Not separately specified on the current ST18 product page |
| Primary Applications | Concrete fastening, furring strips, construction work, windows, cabinets, trim and related applications where a compatible 14GA concrete T-nail system is specified |
Dimensional note: use the metric specification when qualifying the fastener. KYA lists ST18 as 18mm and describes it as a nominal 3/4-inch nail; 18mm should be treated as the product's published metric length rather than as an exact mathematical conversion of 3/4 inch.
ST18 is the 18mm member of KYA's ST Series concrete T-nail family. This page should therefore primarily target the exact search entity ST18 / 18mm / 3/4-inch / 14 Gauge Concrete T Nail rather than treating every ST Series length as the same product.
The broader ST Series is useful as a size-selection reference for buyers who already use ST-type concrete nailers and need a shorter or longer fastener.
The current detailed KYA packing table confirms the following ST Series models. Each listed size uses 40 nails per stick and 1,000 nails per box.
| Model | Metric Length | Nominal Inch Length | Pcs / Stick | Pcs / Box |
|---|---|---|---|---|
| ST18 | 18mm | 3/4" | 40 | 1,000 |
| ST25 | 25mm | 1" | 40 | 1,000 |
| ST32 | 32mm | 1-1/4" | 40 | 1,000 |
| ST38 | 38mm | 1-1/2" | 40 | 1,000 |
| ST45 | 45mm | 1-3/4" | 40 | 1,000 |
| ST50 | 50mm | 2" | 40 | 1,000 |
| ST57 | 57mm | 2-1/4" | 40 | 1,000 |
| ST64 | 64mm | 2-1/2" | 40 | 1,000 |
Availability note: the current KYA product selector also displays 28mm, 35mm and 40mm leg lengths, but these sizes are not assigned ST model numbers or packing data in the detailed table on this page. Confirm their current specification before adding them to a purchase order or structured product data.
The current ST18 page specifies high-carbon steel with a galvanized finish. The page does not identify an exact steel grade, zinc thickness, galvanizing process or corrosion-test duration, so those values should not be added without a current production specification or test report.
The galvanized finish provides a zinc-coated surface for corrosion protection, but the current page does not establish ST18 as a universal exterior or marine fastener. Environmental exposure and project requirements should be checked before selecting the finish.
ST18 nails are supplied in 0-degree glue-collated straight strips. The adhesive holds the nails together for magazine feeding in a compatible concrete T nailer.
Reliable feeding depends on more than gauge and nail length. Head dimensions, shank diameter, strip spacing, adhesive condition and magazine geometry should also match the nailer's fastener specification.
The current KYA ST18 page lists WOODPECKER ST64, KAMSIN ST64 and AIR LOCKER CN64A3 as tool references. For cross-brand use, verify actual fastener dimensions rather than relying only on the ST64 or 14GA naming convention.
| Tool / Reference | Published Fastener Data | Matching Guidance |
|---|---|---|
| KYA ST18 Product | 18mm length, 5.9–6.1mm head width, 2.07–2.1mm shank, 1.4–1.5mm head thickness | Use these product-page dimensions as the primary reference for this ST18 SKU. |
| KYA ST64 Nailer | 14GA concrete T nails, 18–64mm; current tool page publishes approximately 2.2mm shank and 6.5 × 1.8mm head dimensions | ST18 falls within the published gauge and length range, but the published dimensions are not identical. Confirm current production fastener fit. |
| KAMSIN ST64 System | Current KAMSIN nail data lists 18–64mm, approximately 2.2mm shank and 6.7mm head | Same general ST concrete T-nail market class, but published dimensions differ from the KYA ST18 page. Verify physical fit before volume use. |
| Meite ST64 | 18–64mm 14GA concrete T nails with a published fastener cross-section around 6.7 × 2.2mm | Useful ST64-class tool reference; it should not be treated as proof of direct KYA ST18 interchangeability without dimensional checking. |
| WOODPECKER ST64 / AIR LOCKER CN64A3 | Listed as tool references on the current KYA ST18 product page | Confirm the exact current tool manual and fastener dimensions before replacement use. |
ST18 is the shortest size in the current detailed KYA ST Series table. A shorter nail can be appropriate where the attached material is relatively thin and the application does not require the deeper penetration provided by longer ST25–ST64 fasteners.
Do not select nail length only by assuming that a longer nail provides a better connection. Concrete hardness, steel thickness, attached material thickness, edge distance, nailer capability and required penetration all affect fastener selection.
ST Series concrete T nails are used for selected furring-strip installations where the strip thickness, substrate and nailer specification are suitable for the selected nail length.
The current KYA product family is marketed for concrete fastening and selected woodworking or trim applications. For ST18, verify that the 18mm length provides adequate penetration after passing through the attached material.
Window and cabinet installation are listed on the current KYA page. Use ST18 only where the substrate, component thickness and fastening specification permit a short 18mm concrete T nail.
The ST Series is also marketed for construction framing, truss-related work and other construction fastening. These descriptions should not be interpreted as a structural load rating for ST18. Follow the applicable project fastening specification.
Decking appears in the current product application list. Because ST18 is galvanized but the page does not specify coating thickness or an exterior exposure class, confirm corrosion and structural requirements before using the fastener in outdoor construction.
| Selection Factor | What to Check |
|---|---|
| Attached Material Thickness | The fastener must pass through the attached component while retaining suitable penetration into the receiving substrate. |
| Concrete Condition | Concrete density, age and condition can affect driving behavior. Test the fastening system where the substrate is uncertain. |
| Steel Substrate | If fastening to steel, verify the steel thickness and whether the selected concrete T-nail system is specified for that application. |
| Nailer Range | Confirm that the nailer accepts an 18mm 14GA ST-type concrete T nail with the required physical dimensions. |
| Fastening Depth | Choose a length that provides the required penetration without excessive embedment or damage to the attached component. |
| Environmental Exposure | Confirm whether the published galvanized finish meets the corrosion requirements of the installation environment. |
| Ordering Information | Featured Specification |
|---|---|
| Model | ST18 |
| Gauge | 14 Gauge |
| Length | 18mm / nominal 3/4" |
| Head Width | 5.9–6.1mm |
| Shank Diameter | 2.07–2.1mm |
| Head Thickness | 1.4–1.5mm |
| Material | High-Carbon Steel |
| Finish | Galvanized |
| Collation | 0° Glue-Collated Strip |
| Nailer | Provide exact manufacturer and model when cross-brand tool compatibility needs verification |
| Application | Provide attached material, substrate and application so the appropriate ST length can be evaluated |
| Packing | 40 pcs/stick; 1,000 pcs/box |
ST18 is the 18mm member of KYA's 14 gauge ST Series concrete T-nail family. It is a galvanized, glue-collated fastener intended for compatible concrete T-nail systems.
KYA specifies ST18 at 18mm, marketed in this product family as a nominal 3/4-inch length.
The current KYA product page identifies ST18 as a 14 gauge concrete T nail.
The current ST18 product specification lists a 2.07–2.1mm shank diameter.
KYA currently lists a 5.9–6.1mm head width and 1.4–1.5mm head thickness.
The current product page specifies high-carbon steel. It does not identify one exact steel grade for this ST18 SKU.
Yes. The current KYA ST18 page lists a galvanized finish.
The current ST18 product page states only “Galvanized” and does not identify the galvanizing process. Do not assume electro-galvanized or hot-dip galvanized without the applicable production specification.
The current individual ST18 product page does not specify a point type. Confirm the current production drawing if point geometry is important for the application.
The current individual ST18 page does not separately define the shank profile. Confirm the actual production configuration instead of assuming a smooth or indented shank from another ST Series source.
They are listed as 0-degree glue-collated straight strips.
The current packing table lists 40 nails per stick.
The current KYA specification lists 1,000 nails per box.
The current KYA ST64 tool page accepts 14 gauge concrete T nails from 18mm to 64mm, so ST18 is within its published gauge and length range. However, published fastener dimensions on the tool page and this ST18 page are not identical, so confirm the current production specification before volume use.
The current KYA page lists KAMSIN ST64 as a tool reference, and KAMSIN publishes an 18–64mm 14GA concrete T-nail system. KAMSIN's published shank and head dimensions differ slightly from the current KYA ST18 page, so physical compatibility should be verified before bulk use.
No universal compatibility should be assumed. Verify the nailer's accepted head dimensions, shank diameter, length range, strip spacing and magazine geometry.
The current KYA page lists concrete nailing, furring strips, construction work, decking, window installation, cabinet installation and interior decoration among the ST Series applications. The exact suitability of an 18mm nail depends on the attached material and substrate.
The current page does not provide a structural load rating, engineering approval or design value for ST18. Do not infer structural capacity from the application wording alone.
Compare the attached material thickness, substrate, required penetration and the nailer's accepted length range. The 18mm ST18 is the shortest model in the current detailed KYA ST Series table.
KYA supplies ST Series concrete T nails for fastener distributors, pneumatic-tool distributors, construction suppliers, woodworking suppliers and other professional buyers.
For quotations on 14GA ST18 galvanized concrete T nails, provide the exact nailer model, required nail length, substrate, attached material, quantity and destination market.
