The NGK Standard Spark Plug is an essential component for your vehicle's ignition system. Featuring a detachable SAE connector nut, these spark plugs meet the highest quality standards set by NGK. With a hex size of 20.8mm, thread diameter of 14mm, thread length of 19mm, and an electrode gap of 0.5mm, this product ensures optimal performance and reliability. Always check the manufacturer's specifications before placing your order to ensure compatibility and proper fit.