You don't need to worry about a twist between the wires when you combine the wires. These lever nuts. --All kinds of standard test probes can be used to check the lever nut. --There is a test hole at the back of the lever nut and the hole are designed to check whether the wires have.
eBay
Copper 1/2" 3/4" 1" Thread Connector Fittings Water Pipe Reducer Connector Transitional Hose Repair Coupling
Aliexpress UK
Quantity: 60PCS(30Pairs). Used with the male quick disconnect for easy safe splicing into wire, prevents the wire from shorting out. Quick Splice Wire Connector Length: 3.7 cm. Easy installation. Makes tapping into an existing wire a quick and easy job，no special tools needed.
eBay
1PCS BSF Thread Hose Connectors- Brass Threaded Tap Connectors Adapters for Kitchen & Garden Faucets
Aliexpress UK
Simply Strip 10mm and insert into the connector and secure the lever then release the lever to remove the cable and re-use the connector. All connectors have a built in test point. 2, 3, 4 and 5 Pole Rated at 32A.
eBay
5PCS Pneumatic Fitting Connectors PC 4/6/8/10/12mm Thread 1/8 1/4 3/8 1/2 Air Hose Fittings Pipe Quick Connector Accessories
Aliexpress UK
AU WIRE CONNECTORS. manicure set. Quantity: 450 Pcs/1 Set. We will reply you within 24 hours. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
eBay
30/40/50/60/70pcs Pneumatic Fitting Straight Push Plastic Connector 6/8/10/12mm Trachea Connector PU Air Hose Tube
Aliexpress UK
This is detailed below;. Insulated Bullet Connectors. We cannot advise you as to which connectors you will need for specific wiring. The connectors are excellent quality but require you to select the appropriate type and size for the job that you need.
eBay
1/2" 3/4" Garden Hose Quick Connector Water Pipe Faucet Extender Fixed Connectors Fittings Adapter Joint Irrigation System
Aliexpress UK
Quantity: 280Pcs. US - Wire Connectors. UK - Wire Connectors. Type:Assorted Connector. 160Pcs Red Conector:Suits cable/ wire sizes 0.5-1.5mm², 22-18AWG. 100Pcs Blue Connector:Suits cable/ wire sizes 1.5-2.5mm² ,16-14AWG.
eBay
Garden Hose Quick Connector 1/2 3/4 1 Inch Pipe Coupler Stop Water Connector Garden Tap Repair Joint Irrigation System Fittings
Aliexpress UK
(US - Wire Connectors. UK - Wire Connectors. Cable range: 0.08-4.0mm²/ 28-12AWG. (4) Local pick up is not available. 3 inputs and 9 outputs. excluded.). 3 inputs 6 outputs.
eBay
IBC Tank Adapter Adaptor Connector Water Tank Outlet Connection Fitting Tool For Home Garden Water Connectors
Aliexpress UK
10pcs Yellow Butt Connectors BV5 20pcs Red Butt Connectors BV1 20pcs Blue Butt Connectors BV2 Connector Size:4.0-6.0mm²/12-10AWG. Connector Size: 0.75-1.5mm²/22-16AWG. Connector Size:1.5-2.5mm²/16-14AWG.
eBay
1-30Pcs Garden Hose Quick Connector Faucet Extender Hose Connection Joint Water Gun Watering Pipe Fitting Quick Connector
Aliexpress UK