KYA 19x21.5 Gauge 041030G Galvanized Flat Stitching Wire is designed for stitching cardboard packaging boxes, corrugated cartons, books, side stitching, saddle stitching, corner stitching, and inline press applications. With a flat wire size of .041" x .030" / 1.05mm x 0.75mm, it provides stable stitch forming for packaging and printing production.
Made from low-carbon steel with a zinc-galvanized coating, 041030G stitching wire provides rust resistance, a clean flake-free surface, and consistent feeding performance. Its tensile strength range of 135,000-165,000 PSI helps balance stiffness and flexibility, reducing premature wear on stitching heads and trimmer knives while maintaining reliable stitch quality.
The following flat stitching wire specifications help packaging manufacturers, carton box factories, bookbinding companies, printing plants, box stitching machine users, and wire distributors choose the correct wire gauge, size, feed length, and recommended work thickness.
| Wire Gauge | Size in Inches | Size in Millimeters | Feet per Pound | Recommended Thickness of Work |
|---|---|---|---|---|
| 18 x 20 | .047 x .035 | 1.20 x 0.90 | 221 | 5/8" - 2" |
| 19 x 21.5 | .041 x .030 | 1.05 x 0.75 | 283 | 1/2" - 1" |
| 19.5 x 21 | .037 x .031 | 0.95 x 0.80 | 283 | 1/2" - 1" |
| 20 x 24 | .035 x .023 | 0.90 x 0.60 | 408 | Up to 3/16" |
| 20 x 25 | .035 x .021 | 0.90 x 0.55 | 455 | 1/8" - 5/8" |
| 21 x 25 | .031 x .021 | 0.80 x 0.55 | 559 | 1/16" - 1/2" |
KYA also supplies round stitching wire in multiple wire gauges for carton stitching, bookbinding, saddle stitching, and printing applications. The following table shows German Wire Gauge, ASWG, and BWG reference data for common round stitching wire sizes.
| Wire Gauge | German Wire Gauge mm | m/kg | ASWG mm | m/kg | ft/LBS | BWG mm | m/kg | ft/LBS |
|---|---|---|---|---|---|---|---|---|
| 21 | 0.8 | 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 | 0.6 | 451 | 0.58 | 482 | 717 | 0.56 | 517 | 769 |
| 25 | 0.55 | 536 | 0.52 | 600 | 893 | 0.51 | 624 | 929 |
| 26 | 0.5 | 649 | 0.46 | 767 | 1141 | 0.46 | 767 | 1141 |
| 27 | 0.45 | 801 | 0.44 | 838 | 1247 | 0.41 | 965 | 1436 |
| 28 | 0.4 | 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 | 0.3 | 1802 | 2682 |
| Galvanized Surface | Zinc coating provides rust resistance for packaging, carton stitching, and bookbinding applications. |
| Clean, Flake-Free Finish | Smooth surface helps reduce feeding problems and supports consistent operation in box stitching machines. |
| 135,000-165,000 PSI Tensile Strength | Balanced tensile strength helps form stable stitches while reducing excessive wear on stitching heads and trimmer knives. |
| 19x21.5 Gauge Flat Wire | .041" x .030" / 1.05mm x 0.75mm wire size is recommended for work thickness from 1/2" to 1". |
| High-Speed Stitching Performance | Designed for high-speed carton stitching, side stitching, saddle stitching, corner stitching, and inline press stitching. |
| Kink-Free Wire Quality | Produced to reduce kinks and bends, helping maintain stable wire feeding and consistent stitch quality. |
041030G galvanized flat stitching wire is used in packaging, printing, and bookbinding industries where strong, clean, and consistent stitching is required. It is suitable for corrugated carton factories, cardboard box manufacturers, packaging plants, bookbinding workshops, printing houses, and box stitching machine users.
| Cardboard Packaging Boxes | Used for stitching corrugated packaging boxes, shipping cartons, heavy-duty cartons, and industrial packaging. |
| Carton Box Stitching | Suitable for box stitching machines that require flat wire for strong carton seams. |
| Bookbinding | Used for bookbinding, booklet binding, document binding, and printed material fastening. |
| Side, Saddle, and Corner Stitching | Suitable for side stitching, saddle stitching, corner stitching, and related binding methods. |
| Inline Press Stitching | Can be used for inline stitching in press applications where consistent wire feeding and stitch forming are required. |
| Furniture, Mattress, and Machine Parts Packaging | Recommended for packaging furniture, mattresses, machine parts, and other goods requiring strong carton seams. |
Wire tensile strength, measured in PSI, determines the force required to break the wire. The 041030G stitching wire has a tensile strength range of 135,000 to 165,000 PSI, which helps balance stiffness and flexibility for stable stitching performance.
If tensile strength is too high, the wire may increase wear on stitching heads and trimmer knives. If tensile strength is too low, the wire may not form stitches properly. Choosing the correct tensile range helps maintain machine efficiency, stitch consistency, and packaging quality.
When selecting stitching wire, buyers should confirm wire gauge, wire shape, coating, tensile strength, work thickness, box stitching machine compatibility, spool size, and application type. For 1/2" to 1" work thickness, 19x21.5 gauge flat stitching wire is a common choice.
Galvanized stitching wire is preferred when rust resistance and clean surface performance are required. Copper-coated stitching wire can be selected when a brighter finish or specific appearance is needed. For high-speed packaging production, stable tensile strength and flake-free wire quality are important for reducing downtime.
KYA Fasteners supplies galvanized stitching wire, copper-coated stitching wire, flat stitching wire, round stitching wire, staples, brad nails, coil nails, and industrial fastening solutions for global B2B customers. For packaging factories, carton box manufacturers, printing companies, bookbinding workshops, box stitching machine users, and fastener distributors, KYA can support wire size selection, tensile strength selection, spool consultation, bulk quotation, and export supply.
Contact KYA Fasteners to request 19x21.5 Gauge 041030G Galvanized Flat Stitching Wire specifications, samples, quotation, packing details, and shipping support for your packaging or printing business.
041030G stitching wire is used for stitching cardboard packaging boxes, corrugated cartons, books, booklets, side stitching, saddle stitching, corner stitching, and inline press applications.
041030G flat stitching wire measures .041" x .030", equal to approximately 1.05mm x 0.75mm.
The tensile strength range is 135,000 to 165,000 PSI, which helps provide stable stitch forming and reliable performance in high-speed stitching applications.
Yes. The galvanized coating provides rust resistance for packaging, carton stitching, and bookbinding applications.
The recommended work thickness for 19x21.5 gauge flat stitching wire is 1/2" to 1".
Flat stitching wire has a rectangular profile and is commonly used for carton stitching and box stitching applications. Round stitching wire has a circular profile and is widely used in bookbinding, printing, and general stitching applications.
KYA can supply galvanized stitching wire for rust resistance and copper-coated stitching wire for a bright finish and selected application requirements.
Yes. KYA can supply stitching wire for packaging plants, carton box factories, bookbinding companies, printing houses, box stitching machine users, and fastener distributors.
Yes. Buyers can contact KYA Fasteners to request samples, technical data, quotation, spool details, packing information, and shipping support before placing a bulk order.
