19x21.5 Gauge 041030C Copper Stitching Wire

19×21.5 Gauge 041030C Copper Flat Stitching Wire

KYA 19×21.5 Gauge 041030C Copper Flat Stitching Wire is made from low-carbon steel with a copper-coated surface for carton stitching, packaging, printing and binding applications. The flat wire measures 0.041 × 0.030 inch, approximately 1.05 × 0.75mm.

This wire size provides approximately 283 feet of wire per pound and has a listed reference work-thickness range of 1/2" to 1". Its flat profile provides a wider contact area than round stitching wire and is suitable for compatible stitching equipment used in corrugated carton and other packaging operations.

The listed tensile-strength range is 650–950 N/mm² with a dimensional tolerance of ±0.05mm. Available spool weights include 2kg, 3.5kg, 10kg, 15kg and 100kg.

041030C Copper Stitching Wire Specifications

The 1/2"–1" work-thickness value is a wire-selection reference. Actual stitching capacity depends on the stitching machine, stitching head, cutter, former, clincher, material construction and machine setup.

19×21.5 Flat Stitching Wire Size

The 041030C designation identifies the approximately 0.041 × 0.030-inch flat wire dimensions. In metric dimensions, this corresponds to approximately 1.05 × 0.75mm.

Before replacing an existing stitching wire, confirm both the actual inch or metric dimensions and the stitching-machine requirements rather than relying only on the 19×21.5 designation.

Flat Stitching Wire Size Reference

KYA supplies multiple flat stitching wire sizes for packaging and binding applications. The 19×21.5 size is shown together with related sizes for comparison.

Spool Dimensions and Wire Supply

Stitching wire must feed smoothly from the spool into the stitching head. When ordering replacement wire, confirm the required spool weight, spool dimensions, core size and de-spooling arrangement for the machine.

Copper-Coated Low-Carbon Steel

The 041030C version uses low-carbon steel with a copper-coated finish. The copper coating provides corrosion protection for the steel wire and gives the wire a bright surface appearance.

A clean, consistent wire surface helps the wire travel through guides, cutters and stitching heads without unnecessary friction or coating buildup. The wire should remain free from dirt, contamination, loose coating, kinks and bends during de-spooling.

Galvanized flat stitching wire is also available in the KYA product range. Specify the required surface finish when requesting a quotation.

650–950 N/mm² Tensile Strength

The listed tensile-strength range for this product is 650–950 N/mm². Tensile strength affects wire stiffness and influences feeding, cutting, bending and stitch formation inside the stitching head.

Wire should be matched to the mechanical requirements of the stitching equipment. If your stitching head requires a specific tensile range, provide that requirement when requesting a quotation or sample.

Applications of 19×21.5 Copper Stitching Wire

19×21.5 Copper Flat Stitching Wire is intended for high-strength stitching in packaging, printing and binding operations using compatible stitching equipment.

• Corrugated cardboard boxes and cartons

• Carton box stitching

• Book and booklet binding

• Side stitching

• Saddle stitching

• Corner stitching

• Inline press stitching

• Furniture packaging

• Mattress packaging

• Machine parts packaging

Spool Weight Options

Available spool weights include 2kg, 3.5kg, 10kg, 15kg and 100kg. Select the spool according to the wire holder, de-spooling system and required production run length.

Selecting the Correct Stitching Wire

Before changing wire size or replacing an existing wire, confirm that the stitching machine and stitching head are designed for 0.041 × 0.030-inch flat wire.

Check the stitching head, cutter, former, driver, clincher, wire guides and spool configuration. Providing the existing wire label, machine model or wire sample can help confirm the required specification.

Clean Wire Path for Reliable Feeding

A clean wire path from the spool to the stitching head supports consistent feeding and stitch formation. Wire guides, spring tubes, felt pads and other contact components should be kept clean and inspected for wear.

Correct de-spooling helps prevent kinks, bends, coating damage, flaking and feeding interruptions. The wire should flow freely from the spool without excessive crossing or snagging.

Round Stitching Wire Gauge Reference

KYA also supplies round stitching wire. The following table is a reference for related round wire products and does not represent the dimensions of the 19×21.5 flat wire on this page.

Samples, Bulk Orders and Custom Specifications

Samples can be arranged for product evaluation. For accurate selection, provide the required wire dimensions, coating, tensile requirement, spool weight and stitching-machine information when requesting a sample.

Bulk orders and customized solutions are available. Tailored wire dimensions and spool sizes can be discussed for packaging, printing and binding applications.

KYA Fasteners Supply and Delivery

KYA Fasteners has more than 20 years of experience in industrial fasteners and states that its production is SGS certified.

KYA supplies customers in more than 50 countries and states that worldwide shipments leave from Qingdao port within 20–30 days.

• SGS-certified production

• Supply to 50+ countries

• Worldwide shipping from Qingdao port

• Stated shipping time: 20–30 days

• Custom wire dimensions and spool sizes available

Frequently Asked Questions About 19×21.5 Stitching Wire

What size is 19×21.5 flat stitching wire?

The 041030C wire measures 0.041 × 0.030 inch, approximately 1.05 × 0.75mm.

Is the correct size 0.041 × 0.030 or 0.41 × 0.30 inch?

The correct 041030C specification is 0.041 × 0.030 inch. This corresponds to approximately 1.05 × 0.75mm.

What does 041030C mean?

041030 identifies the approximately 0.041 × 0.030-inch flat wire dimensions. The 041030C model is the copper-coated version.

What is 19×21.5 Copper Stitching Wire used for?

It is used for compatible carton stitching, corrugated packaging, book and booklet binding, side stitching, saddle stitching, corner stitching and packaging for furniture, mattresses and machine parts.

What material is 041030C stitching wire made from?

It is made from low-carbon steel with a copper-coated surface.

What is the tensile strength?

The listed tensile-strength range for this product is 650–950 N/mm². If your stitching equipment requires a specific tensile grade, confirm that requirement before ordering.

What is the dimensional tolerance?

The listed dimensional tolerance is ±0.05mm.

How many feet of 19×21.5 stitching wire are in one pound?

The listed reference value is approximately 283 feet per pound.

What work thickness is 19×21.5 wire recommended for?

The size table lists a reference work-thickness range of 1/2" to 1". Actual stitching capacity depends on the machine, stitching head, material construction and setup.

Will 19×21.5 flat wire work in every stitching machine?

No. The machine and stitching head must be configured for 0.041 × 0.030-inch flat wire. Confirm equipment compatibility before ordering.

Why is a clean wire path important?

A clean wire path helps reduce friction, coating damage, flaking and feeding interruptions between the spool and stitching head.

What spool weights are available?

Available spool weights include 2kg, 3.5kg, 10kg, 15kg and 100kg.

Can I request a sample?

Yes. Contact KYA Fasteners with the required wire specification, spool size and machine information to arrange a sample for evaluation.

Can KYA provide custom wire dimensions or spool sizes?

Yes. Customized wire dimensions and spool sizes can be discussed for specific packaging, printing and binding requirements.

Does KYA supply stitching wire internationally?

KYA states that it supplies customers in more than 50 countries.

What delivery information is available?

KYA states that worldwide shipments leave from Qingdao port within 20–30 days.