KYA 18×20 Gauge 047035G Galvanized Flat Stitching Wire is a heavy flat stitching wire designed for carton stitching, corrugated packaging, heavy book and booklet stitching, side stitching, corner stitching, and other industrial stitching applications. The wire measures 0.047 × 0.035 inch / 1.20 × 0.90mm and is manufactured from low-carbon steel with a galvanized surface finish.
Compared with smaller flat stitching wire sizes, 18×20 gauge provides a larger wire cross-section for applications requiring stronger stitch formation. KYA reference data lists approximately 221 feet of wire per pound and a work-thickness selection reference of 5/8" to 2".
Actual stitching capacity depends on the stitching machine, stitching head, cutter, former, clincher, material density, corrugated-board construction, wire tension and machine setup. Buyers should therefore confirm both the 18×20 flat wire specification and machine compatibility before bulk purchasing.
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| Specification | Details |
|---|---|
| Product Type | Galvanized Flat Stitching Wire |
| Product Code | 047035G |
| Wire Gauge | 18 × 20 Gauge |
| Wire Size – Inch | 0.047 × 0.035 Inch |
| Wire Size – Metric | 1.20 × 0.90mm |
| Wire Profile | Flat / Rectangular |
| Material | Low-Carbon Steel |
| Surface Finish | Galvanized / Zinc-Coated |
| Tensile Strength | 650–950 N/mm²; confirm the required tensile range for the intended stitching head and application |
| Dimensional Tolerance | ±0.05mm |
| Wire Length per Pound | Approx. 221 ft/lb |
| Reference Work Thickness | 5/8" – 2", subject to stitching machine and head compatibility |
| Main Applications | Corrugated Cartons, Heavy Packaging, Side Stitching, Flat Stitching, Bookbinding and Industrial Stitching |
For applications with a defined stitching-head or tensile requirement, confirm the production tensile range and dimensional tolerance for the ordered wire before bulk purchasing.
Flat stitching wire uses a rectangular rather than circular cross-section. The wider profile can provide a broader stitch contact area, which is useful for thicker work and selected carton, packaging and heavy stitching applications.
Heavy Flat Wire Size: 0.047 × 0.035 inch / 1.20 × 0.90mm profile for compatible heavy-duty stitching heads.
Galvanized Steel Surface: Zinc coating provides additional corrosion protection compared with untreated plain steel.
Clean Wire Surface: A clean, consistent surface helps support predictable wire feeding through correctly maintained stitching equipment.
Flat Cross-Section: Provides a wider stitch profile than comparable round wire and is commonly selected for thicker work.
221 ft/lb Reference Yield: Helps packaging and printing buyers estimate wire consumption and production requirements.
5/8"–2" Reference Work Range: KYA's sizing table associates 18×20 wire with thicker stitching applications, although actual capacity is determined by the stitching machine.
B2B Supply: Suitable for carton manufacturers, packaging plants, printing and binding companies, stitching-machine users and wire distributors.
Flat stitching wire should be selected according to the stitching head, work thickness, required stitch strength and machine setup. The following KYA reference table compares common flat stitching wire sizes.
| Gauge | Size (Inch) | Size (mm) | Feet per Pound | Reference Work Thickness |
|---|---|---|---|---|
| 18 × 20 | 0.047 × 0.035 | 1.20 × 0.90 | 221 | 5/8" – 2" |
| 19 × 21.5 | 0.041 × 0.030 | 1.05 × 0.75 | 283 | 1/2" – 1" |
| 19.5 × 21 | 0.037 × 0.031 | 0.95 × 0.80 | 283 | 1/2" – 1" |
| 20 × 24 | 0.035 × 0.023 | 0.90 × 0.60 | 408 | Up to 3/16" |
| 20 × 25 | 0.035 × 0.021 | 0.90 × 0.55 | 455 | 1/8" – 5/8" |
| 21 × 25 | 0.031 × 0.021 | 0.80 × 0.55 | 559 | 1/16" – 1/2" |
Recommended work thickness is a wire-selection reference rather than a universal machine rating. Always check the stitching machine and stitching-head manufacturer's supported wire sizes and material-thickness capacity.
18×20 flat wire is one of the heavier flat stitching wire sizes in the KYA range. It is therefore particularly relevant to thicker work and packaging applications where the stitching machine is configured to accept this wire profile.
| Application | Typical Use |
|---|---|
| Corrugated Carton Stitching | Stitching suitable corrugated carton seams, panels and packaging assemblies. |
| Heavy Packaging | Packaging for furniture, mattresses, machinery parts and other goods where reinforced carton seams are required. |
| Side Stitching | Side fastening of suitable thick printed or packaging materials using compatible stitching equipment. |
| Flat Stitching | Heavy flat-work stitching where the stitching head accepts 18×20 wire. |
| Book & Block Stitching | Selected thick book blocks, pads and printed products when compatible heavy-duty stitching heads are used. |
| Industrial Stitching | Production applications requiring a heavier flat wire and mechanically formed stitch. |
Not every wire stitcher accepts 18×20 flat stitching wire. Before replacing an existing wire or introducing a new wire size, buyers should check the stitching head, cutter, former, driver, wire guides and recommended material-thickness range.
| Compatibility Item | What to Confirm |
|---|---|
| Wire Size | The stitching head must accept 18×20 flat wire measuring 0.047 × 0.035 inch. |
| Cutter & Former | Wear parts and forming components must be suitable for the larger rectangular wire profile. |
| Work Thickness | Confirm actual machine capacity; The 5/8"–2" range is a wire-selection reference rather than a universal machine limit. |
| Wire Tension | Correct tension is important for consistent feeding, cutting and stitch formation. |
| Spool / Coil Setup | Confirm spool type, weight, core dimensions and de-spooling arrangement before bulk ordering. |
| Existing Wire Reference | Providing the existing wire label, gauge, dimensions or machine model helps verify replacement compatibility. |
Check Stitching Machine Compatibility
Tensile strength affects how stitching wire feeds, cuts, bends and forms around the material. Wire that is too hard for a particular stitching head can increase stress on cutters, formers and related wear parts. Wire that is too soft may deform inconsistently or produce unsatisfactory stitch formation.
KYA technical data specifies 650–950 N/mm² for this flat stitching wire. Buyers with a defined tensile requirement should include the target range with their inquiry and request confirmation for the ordered production batch.
KYA supplies flat stitching wire with different surface finishes. Product code 047035G identifies the galvanized version, while buyers requiring copper-coated wire should specify the corresponding copper-coated product.
| Feature | Galvanized 047035G | Copper-Coated Version |
|---|---|---|
| Base Material | Low-carbon steel | Low-carbon steel |
| Surface | Zinc / galvanized finish | Copper-coated finish |
| Product Identification | 047035G | 047035C |
| Selection | Use the finish specified by the stitching-machine user, existing wire specification, customer requirement or production process. | |
Consistent wire feeding depends on both wire quality and stitching-machine maintenance. Even correctly sized stitching wire can feed poorly if the wire path, guides, tension system, cutters or forming components are worn or contaminated.
Confirm that the stitching head is designed for 18×20 flat wire.
Keep the wire guides, spring tubes and wire path clean.
Avoid sharp bends or incorrect spool positioning during de-spooling.
Inspect the cutter, former and driver for wear when stitch quality changes.
Check that the wire coating is not damaged during handling or feeding.
Verify wire tension and machine adjustments whenever changing gauge or spool format.
KYA also supplies round stitching wire. The following table provides a reference for comparing round and flat wire specifications. Gauge dimensions vary according to the wire gauge system, so confirm the actual millimeter diameter rather than relying on gauge number alone.
| Gauge | German Wire Gauge (mm) | m/kg | ASWG (mm) | m/kg | ft/LBS | BWG (mm) | m/kg | ft/LBS |
|---|---|---|---|---|---|---|---|---|
| 21 | 0.80 | 253 | 0.81 | 247 | 368 | 0.81 | 247 | 368 |
| 22 | 0.75 | 288 | 0.73 | 304 | 452 | 0.71 | 322 | 479 |
| 23 | 0.65 | 331 | 0.65 | 384 | 571 | 0.63 | 409 | 609 |
| 24 | 0.60 | 451 | 0.58 | 482 | 717 | 0.56 | 517 | 769 |
| 25 | 0.55 | 536 | 0.52 | 600 | 893 | 0.51 | 624 | 929 |
| 26 | 0.50 | 649 | 0.46 | 767 | 1141 | 0.46 | 767 | 1141 |
| 27 | 0.45 | 801 | 0.44 | 838 | 1247 | 0.41 | 965 | 1436 |
| 28 | 0.40 | 1014 | 0.41 | 965 | 1436 | 0.36 | 1252 | 1863 |
| 29 | 0.37 | 1185 | 0.38 | 1123 | 1671 | 0.33 | 1489 | 2216 |
| 30 | 0.35 | 1324 | 0.36 | 1252 | 1863 | 0.30 | 1802 | 2682 |
| Feature | Flat Stitching Wire | Round Stitching Wire |
|---|---|---|
| Cross-Section | Rectangular | Circular |
| Typical Heavy Sizes | 18×20, 19×21.5 and other flat-wire combinations | Specified by single round-wire gauge or diameter |
| Application | Thicker work, carton stitching and selected heavy bookbinding applications | General printing, bookbinding and stitching depending on gauge and machine |
| Compatibility | Always match the wire size and profile to the stitching head and machine specification. | |
KYA supplies flat stitching wire for corrugated carton manufacturers, packaging factories, printing companies, bookbinding companies, stitching-machine users, industrial packaging suppliers and fastener distributors.
For an accurate 047035G quotation, buyers should provide the required wire dimensions, surface finish, tensile requirement, spool or coil format, spool weight, stitching-machine model, expected monthly consumption and destination country.
If you are replacing an existing stitching wire, send the current wire label, machine model, stitching-head model or wire sample. This is especially important for 18×20 wire because heavy-duty stitching machines may require specific cutter, former or head configurations.
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KYA 18×20 flat stitching wire measures 0.047 × 0.035 inch, equivalent to approximately 1.20 × 0.90mm.
The correct 047035G specification is 0.047 × 0.035 inch. In metric units this is approximately 1.20 × 0.90mm.
The designation identifies the approximately 0.047 × 0.035-inch flat wire size, and the “G” identifies the galvanized version.
It is used for compatible heavy-duty carton stitching, packaging, side stitching, flat stitching, book or block stitching and industrial stitching applications.
KYA reference data lists approximately 221 feet per pound for 18×20 flat stitching wire.
KYA's reference table lists 5/8 inch to 2 inches. This should not be treated as a universal machine capacity because actual limits depend on the stitching head, machine, material density and stitch configuration.
KYA technical data specifies 650–950 N/mm². Buyers with a specific tensile requirement should confirm the ordered production specification before purchasing.
Tensile strength affects wire stiffness, cutting, bending and stitch formation. The wire should match the mechanical requirements of the stitching head rather than being selected on tensile strength alone.
No. It is a relatively heavy flat wire and should only be used with stitching heads and machines designed or configured for this wire size.
Yes, it can be used for suitable carton and corrugated packaging applications when the box stitching machine accepts 18×20 flat wire and has adequate material-thickness capacity.
It can be used in selected heavy book, block or flat-stitching applications with compatible equipment. Smaller flat or round wire sizes are generally used for thinner booklets and lighter work.
Flat wire has a rectangular cross-section with two dimensional measurements, while round wire has a circular cross-section described by a single diameter or gauge. The stitching head must be designed for the selected wire profile.
Both use a steel base wire but have different surface finishes. 047035G is the galvanized version; buyers requiring copper-coated 18×20 wire should specify the corresponding copper-coated product.
The zinc coating provides greater corrosion protection than untreated plain steel. Actual service life depends on coating specification, storage conditions, moisture exposure and the operating environment.
Feeding problems can result from incorrect wire size, unsuitable stitching-head components, poor de-spooling, damaged wire, excessive bends, incorrect tension, dirty guides or worn cutters and formers.
Store stitching wire in a clean, dry environment and protect the spool or coil from moisture, physical damage, dust and deformation before installation on the stitching machine.
Provide the wire gauge, inch or metric dimensions, flat or round profile, surface finish, stitching-machine model, stitching-head model, spool requirements and current wire reference whenever possible.
Yes. Packaging plants, corrugated carton manufacturers, printing and binding companies, stitching-machine users and industrial wire distributors can contact KYA for bulk purchasing requirements.
Looking for 18×20 Gauge 0.047 × 0.035 inch galvanized flat stitching wire? Send KYA Fasteners your stitching-machine model, stitching-head model, spool requirement, tensile specification, purchase quantity and destination country. If you are replacing another supplier's wire, send the existing wire label or sample so the dimensions and compatibility can be checked before quotation.
