SF25 Wire Joiner — 2.5mm-2.8mm High Tensile Wire
The Spiralfast SF25 wire joiner is built for 2.5mm–2.8mm wire (approximately 11.5–12.5 gauge), making it a popular high tensile wire joiner for fencing and trellis applications. As a reusable wire joiner, it's applied and tensioned entirely by hand — no crimping tools, ratchets, or special equipment needed. Available in packs of 20, 50, or 1000, so whether you're joining a single fence line or fitting out a full contracting job, there's a pack size to match.
A faster, stronger alternative to wire knots
Traditional wire knots like the figure 8 knot take practice to tie and can weaken the wire at the bend. The SF25 wire joiner skips the knot-tying entirely — just apply it by hand, and re-tension anytime by simply reapplying it.
