Linen Thread No. 4

No. 4 linen thread is the thickest of our bookbinding threads and is designed for strong, heavy-duty binding work. It is ideal for projects that use heavy paper, thick sections, or wide spines where extra strength and a bold stitch are needed.

This thread is locally spun from natural flax fibre, giving it a traditional look and feel with excellent durability. Its thickness makes it particularly suitable for bindings that need to support weight and repeated handling.

Suitable for use with:
• Heavy paper and card
• Thick book blocks
• Wide spines
• Sketchbooks and albums
• Long-stitch and exposed-spine bindings
• Structural and decorative sewing

Features:
• Locally spun linen
• Very strong and durable
• Thick, visible stitch
• Traditional unbleached finish
• Designed for heavy-duty bindings

Length:
• Approximately 40–43 metres

No. 4 linen thread is best chosen when strength is the priority and when a substantial, traditional-looking stitch is part of the design.