KYA 20×25 gauge galvanized flat stitching wire is designed for professional carton stitching, packaging, printing and binding applications. The wire measures approximately 0.035" × 0.021", or 0.90 × 0.55mm, and provides approximately 455 feet of wire per pound.
The flat wire profile provides a wider contact surface than comparable round wire and is suitable for stitching operations where a flat formed stitch is required. The galvanized low-carbon steel surface provides corrosion protection while a clean and consistent wire surface supports reliable feeding through compatible stitching heads.
| Product Type | Flat Box Stitching Wire |
| Model | 20×25 Gauge / .035×.021G |
| Product Code | KYA-20x25G |
| Wire Profile | Flat Wire |
| Gauge | 20×25 |
| Size in Inches | 0.035" × 0.021" |
| Size in Millimeters | 0.90 × 0.55mm |
| Material | Low-Carbon Steel |
| Finish | Galvanized |
| Tensile Strength | 135,000–165,000 PSI as listed for this product; confirm the current value against the material certificate for the supplied lot. |
| Compatible Stitching Equipment | Deluxe, ISP, Magnatek and Hohner flat wire stitchers are listed for this wire size. Confirm compatibility with the exact machine and stitching-head model before ordering. |
| Spool Weights and Custom Sizes | 5–25 lb spools are listed; custom sizes are available on request. Confirm current available weights. |
| Wire per Pound | Approximately 455 ft/lb |
| Reference Work Thickness | Approximately 1/8"–5/8" |
| Main Applications | Carton stitching, packaging, printing and binding |
The recommended work thickness is a wire-selection reference rather than a universal stitching-machine capacity. Always confirm the supported wire size and material thickness with the stitching machine or stitching-head specification.
Consistent wire dimensions and a smooth surface are important for reliable stitching-machine operation. KYA flat stitching wire is designed to feed from the spool through compatible wire guides, cutters, formers and stitching heads with consistent wire presentation.
The 20×25 specification corresponds to approximately 0.035" × 0.021", or 0.90 × 0.55mm. The rectangular profile creates a broader wire surface than round stitching wire and forms a wide flat stitch when used with a compatible stitching head.
The wire is manufactured from low-carbon steel with a galvanized surface. The zinc-coated finish provides corrosion protection and is commonly used for carton stitching, packaging and binding wire.
The 20×25 size provides approximately 455 feet of wire per pound. This value helps production buyers estimate wire consumption and compare spool weights for recurring stitching operations.
A clean wire surface, consistent dimensions and controlled spool winding help the wire feed through compatible stitching equipment. Proper spool installation, wire tension and stitching-head setup remain important for reliable production.
20×25 flat wire is used in commercial stitching equipment for packaging, binding and related production work where this wire specification is supported by the stitching head.
Flat stitching wire should be selected according to the stitching head, work thickness and machine setup. The following table compares commonly used flat wire sizes.
| Flat Wire Size | Inches | Millimeters | Approx. ft/lb | 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" |
These work-thickness values are general wire-selection references. The supported capacity of the stitching machine or stitching head takes priority when selecting wire.
Round stitching wire is a separate wire profile used in many stitching and binding machines. The following values provide a general reference for several commonly used nominal round wire sizes.
| Gauge | Nominal Diameter | Approx. ft/lb |
|---|---|---|
| 20 | 0.035" / approximately 0.90mm | Approximately 309 |
| 21 | 0.032" / approximately 0.80mm | Approximately 373 |
| 24 | 0.023" / approximately 0.60mm | Approximately 708 |
| 25 | 0.021" / approximately 0.55mm | Approximately 900 |
Round and flat stitching wire are not interchangeable solely on the basis of gauge number. Confirm the wire profile and supported dimensions for the exact stitching head before ordering.
| Feature | Flat Stitching Wire | Round Stitching Wire |
|---|---|---|
| Cross Section | Rectangular / flat | Round |
| Size Description | Two dimensions, such as 20×25 | Single nominal gauge |
| Formed Stitch | Wide flat wire profile | Round wire profile |
| Machine Selection | Requires a stitching head that supports the specified flat wire size | Requires a stitching head supporting the specified round wire gauge |
| Product on This Page | 20×25 / 0.90×0.55mm | Not applicable |
20×25 galvanized flat stitching wire is used in commercial packaging, carton manufacturing, printing and binding operations where the stitching equipment is configured for this wire dimension.
Corrugated carton stitching and closing
Cardboard packaging box assembly
Industrial packaging operations
Furniture and mattress packaging
Printing and binding operations
Flat stitching
Side stitching
Commercial production stitching
The 20×25 size is commonly referenced for work thickness in the approximate 1/8"–5/8" range, but actual capacity depends on the stitching machine, head, clincher setup and material being stitched.
20×25 flat wire is supported by a range of professional stitching equipment. For example, several DeLuxe stitching-machine specifications list 20×25 among their accepted flat wire sizes, and some Interlake ISP stitching equipment also supports this wire specification.
Compatibility must still be confirmed for the exact machine and stitching head. Different models from the same manufacturer can support different flat wire sizes, work thicknesses, spool configurations and clincher setups.
| Wire Type | Flat Stitching Wire |
| Wire Size | 20×25 / 0.035" × 0.021" |
| Metric Size | 0.90 × 0.55mm |
| Machine Requirement | Stitching head specifically supporting 20×25 flat wire |
| Before Ordering | Confirm machine manufacturer, model, stitching head and spool requirements |
Galvanized stitching wire uses a zinc-coated steel surface for corrosion protection. The 20×25 wire shown on this page is the galvanized version.
Copper-coated stitching wire is another finish available within the broader KYA stitching wire range. Buyers requiring copper-coated wire should specify the required gauge, dimensions, spool size and machine application separately.
Finish selection should be based on the machine requirements, production environment, packaging requirements and purchasing specification.
Stitching wire is supplied on spools for continuous feeding into commercial stitching equipment. KYA lists multiple spool sizes within its stitching wire range, while exact spool weight and core dimensions should be confirmed for the required wire specification.
Before selecting a spool, verify the machine's spool holder, maximum spool dimensions, arbor or core size and production consumption. A compatible wire gauge does not automatically mean every spool format will fit the machine.
For accurate product matching and quotation, provide the flat wire size, finish, required spool weight, stitching machine manufacturer and model, stitching head information, purchasing quantity and delivery destination.
For this product, reference KYA-20x25G and specify 20×25 gauge, 0.035" × 0.021" / 0.90 × 0.55mm, galvanized flat stitching wire.
| Product Code | KYA-20x25G |
| Wire Size | 20×25 Gauge |
| Dimensions | 0.035" × 0.021" / 0.90 × 0.55mm |
| Profile | Flat Wire |
| Material | Low-Carbon Steel |
| Finish | Galvanized |
| Wire Yield | Approximately 455 ft/lb |
| Inquiry Information | Spool weight, quantity, machine model, stitching head, application and destination |
20×25 flat stitching wire measures approximately 0.035" × 0.021", or 0.90 × 0.55mm.
The published reference for this size is approximately 454–455 feet per pound. KYA lists the 20×25 version at approximately 455 ft/lb.
A commonly published selection reference is approximately 1/8" to 5/8". This is not a universal machine capacity, so always check the stitching machine and stitching-head specification.
It is used for carton stitching, corrugated packaging, cardboard box closing, printing, binding and other commercial stitching operations where a 20×25 flat wire is supported by the machine.
Flat wire has a rectangular profile and forms a wider stitch across the material. Round wire has a circular cross section. The correct type depends on the stitching head, material thickness and required stitch configuration.
Several DeLuxe machines and stitching heads list 20×25 among their supported flat wire sizes. Compatibility must still be confirmed using the exact machine and stitching-head model before ordering.
Some Interlake ISP stitching equipment supports 20×25 flat wire. Check the exact machine and head specification because supported wire sizes vary between models.
The KYA-20x25G product shown on this page is galvanized low-carbon steel wire. Copper-coated stitching wire is available separately within the broader stitching wire range.
Select the spool according to the stitching machine's spool holder, arbor or core dimensions, production volume and purchasing requirements. Provide your machine model and required spool weight when requesting a quotation.
A 5 lb sample spool is offered free, with freight paid by the recipient. Confirm availability and freight cost for your destination before ordering.
The listed MOQ is one pallet (500–1,000 kg). Confirm the current MOQ, pallet quantity and custom spool options with KYA when requesting a quotation.
Provide the required wire size, finish, spool weight, purchasing quantity, machine manufacturer and model, stitching-head information, application and delivery destination. Reference KYA-20x25G for this galvanized 20×25 flat wire.
