We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Bulk pack of 1000 blue heat-shrink butt connectors in assorted colours

Qizpcer 1000 Pcs Heat Shrink Butt Connectors 16-14 AWG Wire Cap Connectors

SKU CH-H10D-WVEVM

Waterproof heat-shrink butt connectors for 16-14 AWG wire with tinned copper cores and adhesive-lined tubing, 1000 pieces

  • ColorBlack
  • 1000 connectors cover large wiring jobs in one pack
  • Tinned copper core gives strong crimp and high conductivity
  • Solderless crimp with heat gun makes fast, reliable joints
  • 3:1 shrink ratio tubing seals out water and holds wires firm
  • Rated from -60 to 260 °F for automotive and marine use

1000-Piece Heat Shrink Butt Connector Kit

This kit supplies one thousand heat-shrink butt connectors sized for 16 to 14 AWG wire. It is intended for technicians and hobbyists who need reliable, waterproof splices in automotive, marine or general electrical work. The assortment includes yellow, black, blue, red and clear tubing for quick visual identification.

3:1 Shrink Ratio and Temperature Limits

Each connector uses polyolefin tubing with a 3:1 shrink ratio and an inner adhesive layer that seals against moisture and corrosion. The tubing begins to shrink at 175 °F and is rated for continuous operation from -60 °F to 260 °F. A heat gun is required to activate the seal; open flames or inadequate heat will not produce a waterproof joint.

Solderless Crimp Upgrade for 16-14 AWG Wiring

These connectors replace twist-and-tape or bare crimp methods by combining a tinned copper barrel with adhesive-lined heat shrink. The solderless design lets you insert stripped wires, crimp both ends with standard pliers, then apply heat for a sealed splice. The jump is worth it when vibration, salt spray or condensation would degrade unsealed connections.

Highlights

  • 1000 connectors cover large wiring jobs in one pack
  • Tinned copper core gives strong crimp and high conductivity
  • Solderless crimp with heat gun makes fast, reliable joints
  • 3:1 shrink ratio tubing seals out water and holds wires firm
  • Rated from -60 to 260 °F for automotive and marine use

Specifications

ColorBlack

Questions about this item

Should I pick the 16-14 AWG blue connectors or one of the other gauge sizes in the kit?

Choose the blue 16-14 AWG connectors when your wires fall between 1.5 and 2.5 mm²; the kit also includes yellow for 12-10 AWG, red for 22-16 AWG, clear for 26-24 AWG and black for 14-12 AWG so you can match each splice to its wire gauge.

What does the 3:1 shrink ratio actually do once I heat the connector?

The tubing shrinks to one-third its original diameter and the inner hot-melt adhesive flows to fill gaps, creating a waterproof, strain-relieved seal that holds the splice firmly in automotive or marine wiring.

How does the 175 °F minimum shrink temperature affect the tools I need?

A standard heat gun set above 175 °F will activate the shrink and adhesive; the connectors are rated for continuous use from -60 °F up to 260 °F, so they survive engine-bay and under-dash temperatures once installed.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.