Square Lead Wire provides weight to the hook shank with a flat profile. This square lead wire is flat, not rounded, delivering more weight per wrapped length. Unlike traditional rounded wire, the square geometry adds density where you wrap, and as you work, the lead untwists to create a flat surface that lays cleanly against the shank. The result is steadier control over head shape as you build your pattern.

In fly tying, precise weight and balance translate to a more natural presentation on the water. The compact, dense form lets you build tight, durable wraps that stay put under casting and drift. The flat profile reduces bulk at the shank while improving wrap density and alignment, contributing to a cleaner head and more consistent presentation.

• Flat square profile increases weight per wrapped length
• Square geometry adds density exactly where you wrap
• Untwisting during wrapping creates a flat surface for clean wraps
• Designed for weighting the hook shank in fly tying
• Compact, dense weight improves wrap density and balance

Add Square Lead Wire to your fly-tying toolkit and take control of weight and balance in your patterns.