2 Pack Genuine NGK 5812 Spark Plug CM6 for Generators Scale Gas Airplane Engines

Shell
Thread Diameter: 10mm
Thread Pitch: 1.0mm
Seat Type: Gasket
Reach: 8.5mm (.335")
Hex Size: 9/16" (14mm)
Terminal Type: Solid
Overall Height: Bantam
Gap: .016" (0.4mm)

Center Electrode
Material: Nickel
Type: Standard
Size: 2.5mm
Projection: Non-Projected

Ground Electrode
Material: Nickel
Type: Standard

Specifications
Resistor: No
Resistor Value: 1K Ohm
Heat Range: 6
Torque Specs: Cast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft.