4 Pack Autolite 386 Nickel Spark Plug Removable Terminal Nut

Shell
Thread Diameter: 18mm
Thread Pitch: 1.5mm
Seat Type: Gasket
Reach: 12.7mm (1/2")
Hex Size: 7/8" (22mm)
Terminal Type: Removable Nut
Gap: .024" (0.6mm)

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

Ground Electrode
Material: Nickel
Type: Standard

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 4
Torque Specs: Cast Iron: 32-38 lb. ft. Aluminum: 28-34 lb. ft.

Part Information
Brand: Autolite
Longevity: 30k Miles