If you run a repair shop that works on automotive wiring, marine electronics, or industrial control panels, you will go through red 0.5-1.5mm² butt connectors faster than any other size. The QUADRIOS 22C467 is a 150-piece bulk bag of exactly that – no unnecessary colors, no small sample packs.

Each connector has a tinned copper barrel that you crimp with standard ratcheting crimpers. After crimping, apply heat with a heat gun. The outer tube shrinks, and the inner hot-melt adhesive flows into the wire strands and over the insulation, creating a seal that blocks moisture, salt, and dust. The 36mm length gives you enough tube to cover a generous stripped section on each side, reducing the risk of exposed conductor.

This is not a kit for occasional use. It is for the technician who repairs ten trailers a week or the maintenance team that keeps a factory running. When you know exactly what size you need and you need it in quantity, this bulk bag saves money and plastic waste compared to individual retail packs.