So as to make the K2 connector more effective and stable. Suitable for most wire connections.
eBay
20/30/50pcs Double-Wire Plug-in Connector with Locking Buckle Pluggable LED Wire Connector 2 Pin 2 Way Universal Compact Wire
Aliexpress UK
High quality product as used by BT engineers, made by DexGreen. The wires do not need to be stripped as the IDC connection in the crimp does that for you. They are very simple to use, insert one wire in each hole and just squeeze down using pliers.
eBay
2Pin Way Plug Wire Cable Snap Connectors 10/50PCS Waterproof Electric Car Wire Double-Wire Plug-In Connector with Locking Buckle
Aliexpress UK
2PCS Car Wire Splice Battery Cable Ends Coupler Connectors. 4PCS Sliding Door Handles Closet Door Pulls Bifold Door Lock. 220 Pcs Wire Connector Nut Set Insert Twist Electrical Connectors Cable. | Sound & Vision |.
eBay
2 Pin Way Plug Wire Cable Snap Connectors Waterproof Electric Wire Double-Wire Plug-In Connector with Locking Buckles Wholesale
Aliexpress UK
Converts centre two pins on RJ11 to pins used by BT phone sockets.
eBay
40PCS Wire Connectors Screw Terminal Cap Insulating Insert Twist Electrical Wire Connectors with Spring Portable Wire Caps
Aliexpress UK
20 Pack 2 Wire Telephone JELLY CRIMPS Telecom Connector BT Cable Repair Splicer
eBay
50pcs Double-Wire Plug-in Connector with Locking Buckle Pluggable LED Wire Connector 2 Pin 2 Way Universal Compact Wire
Aliexpress UK
High quality product as used by BT engineers, made by DexGreen. The wires do not need to be stripped as the IDC connection in the crimp does that for you. They are very simple to use, insert one wire in each hole and just squeeze down using pliers.
eBay
20/50/100Pcs 2 Pin 2 Way Universal Compact No-Wire-Stripping Toolless Spring Wire Connectors Quick Splice Wire Connector
Aliexpress UK
This kit includes everything you need: Each set contains 60 pcs cable connectors connectors and 2 pcs wire strippers for easy assembly. Simply insert the cable and press to secure—it's identical at both ends.
eBay
5 Sets 3 Pin 1.5 Connectors, DJ7031-1.5 Waterproof Electrical Wire Connector Plug,Xenon lamp connector Automobile Connector
Aliexpress UK
High quality product as used by BT engineers, made by DexGreen. The wires do not need to be stripped as the IDC connection in the crimp does that for you. They are very simple to use, insert one wire in each hole and just squeeze down using pliers.
eBay
Wire Connectors SPL-424 Terminal Block push-in Quick Connector Docking Wiring Connector Electrical plug in fast Cable Connector
Aliexpress UK