304 stainless steel round nut thickened round nut cylindrical nut screw joint nut

• Fits all standard oxygen sensors with M18 x 1.5 O2 sensor holes
• Straight bolt-on, no modification needed, quick and easy installation to remove check engine light
• 90 Degree bend design is great for spacer clearance issue
• High Quality Material-Made of mild steel and nickel plated on the surface which can avoid cracking and excessive heat expansion
• Backed by 1 year warranty and our 100% satisfaction guarantee