We offer the 6-mm Stecker by Lehner Motor Technik, shown in detail below.
The LMT 6-mm are for high-current applications such as EDF, and hotliners. These 6-mm Stecker have by far the lowest resistance of any connectors currently available: 0.03 milli-Ohm.

ITEN #MBLMT6mPrice: $32.20 for 10 pieces (mix and match males and females)

Bullet 6 mm base connector
With the look of a 308 round these connectors have a allen tap that you can just tork the screw down onto the wire and use no solder, though I still do.
USD$3.20 per

Price: $29.00 for 10 pieces (mix and match males and females)

Bullet
Bullet 4.0mm (pair) $3.00
Bullet 3.5mm (pair) $3.00
Bullet 2.0mm (pair) $3.00

Astro Flight 3 Pin Zero Loss

per set $10.00
Astro Flight Zero Loss

per set $14.10

JETI

Jeti 3.5mm (1x male) $2.50
Jeti 3.5mm (1x female) $1.50

Sermos
3.10 pair

Deans Ultra Plug
per pair $3.50

Deans Ultra II Plug
per pair $4.50

Mp jet connectors
MP Jet 3.5mm $8.50 (3 sets)
MP Jet 2.5mm $8.10 (3 sets)
MP Jet 1.8mm $7.72 (3 sets)

Gold "Stecker"
Gold "Stecker" 4mm (pair) $8.00
Gold "Stecker" 2mm (pair) $6.00

Gold Blade connectors $300 for 4 two sizes

Wires

12g round $1.10 per foot
13g round $1.10 per foot
14g round $1.10 per foot
16g round $1.10 per foot
18g oxegen copper $1.00 per foot
24g copper $.70 per foot

The flat wire can be used for ductedfans as shown, helping to reduce negitive swirling, or along a fuselage to keep out of the way

12g flat $1.22 per foot