LMG 23RM79-BR Twin Loop Wire Binding Spines Silver 12.7mm for 50 Sheets, 100 Pack

In busy offices and print shops, professionals rely on these LMG twin loop wire binding spines to give reports, proposals, and training manuals a polished, bookstore-quality finish. The 12.7 mm silver steel loops accommodate up to 50 sheets of 80 gsm paper, making them ideal for medium-sized documents that need to lie flat and open easily. Each spine features 23 loops at a 2:1 pitch (two holes per inch), ensuring a secure, even bind across A4 pages. The metallic silver finish adds a crisp, professional accent that suits corporate branding and formal presentations. With 100 spines per pack, you have enough supply for high-volume binding jobs without frequent reordering. These spines are compatible with standard 2:1 pitch wire binding machines, so setup is straightforward. The durable steel construction resists bending and maintains its shape, even with repeated handling. Whether you are binding a quarterly financial report, a product catalog, or a training binder, these spines deliver consistent, reliable results. They are a practical choice for in-house print rooms, copy centers, and administrative departments that value both efficiency and presentation quality.

Key specifications

• Binding method: Twin loop wire (Wire-O)
• Pitch ratio: 2:1 (2 holes per inch)
• Spine diameter: 12.7 mm (1/2 inch)
• Binding capacity: Up to 50 sheets of 80 gsm paper
• Color: Silver
• Material: Steel
• Quantity per pack: 100 pieces
• Document format: A4
• Number of loops: 23
• Finish: Metallic
• Compatibility: 2:1 pitch wire binding machines

Why choose it

These spines combine strength and elegance. The steel wire is rigid enough to protect documents, yet flexible enough to allow pages to turn smoothly. The 2:1 pitch provides more loops per inch than 3:1, resulting in a tighter bind that keeps pages securely in place. The silver finish is neutral and professional, suitable for any document type. Because they are sold in a pack of 100, the cost per bind is economical for offices that produce many bound documents. The standard 12.7 mm diameter is a common size for 50-sheet documents, reducing the need for multiple spine sizes in stock. Installation is quick with any compatible wire binding machine, and the spines can be reopened and closed if pages need to be added or removed.

Ideal use cases

• Binding business reports and financial statements
• Creating professional proposals and bids
• Assembling training manuals and employee handbooks
• Producing product catalogs and price lists
• Making presentations and seminar materials
• Binding academic papers and theses

Good to know

These spines are designed for A4 documents with a 2:1 hole pattern. Ensure your punching machine is set to 2:1 pitch to match the loop spacing. For best results, use paper weights around 80 gsm; heavier stock may reduce capacity. The steel wire is coated with a metallic finish that resists corrosion and fingerprints. Store spines in a dry environment to maintain their appearance. Each spine has 23 loops, which corresponds to the standard hole count for A4 sheets with 2:1 pitch. If you need to bind thicker documents, consider a larger diameter spine.