Genuine Denso set. Please take note that this series plugs is only good for 20-30k mileage. 
Thread Diameter
12mm
Thread Pitch
1.25mm
Seat Type
Gasket
Reach
26.5mm (1.04")
Hex Size
5/8" (16mm)
Terminal Type
Solid
Overall Height
ISO
Gap
.035" (0.9mm)
Center Electrode
Material
Iridium
Type
Fine Wire
Size
0.4mm
Projection
Projected
Ground Electrode
Material
Nickel
Type
U-Groove
Shape
Taper Cut
Quantity
1
Specifications
Resistor
Yes
Resistor Value
5k Ohm
Heat Range
22
Torque Specs
Cast Iron: 11-18 lb. ft. Aluminum: 11-18 lb. ft.
Longevity
30k