Oil Drain Plug 21mm Dorman 090-105 Engine Oil Drain Plug 21mm Hex Oil Plug M18x1.5 Available in many different sizes Dorman® 092-022 - Autograde™ EZ Drain Engine Oil Drain Plug ; Thread Pitch. 1.50 ; Thread Size. M20-1.50 ; Thread Type. Fine ; Threads Per Inch. 38.1 ; Brand: Dorman Backed by team of engineers and quality control specialists in the United States It's specially designed to simplify changing your oil by replacing your factory plug with a tool-free, clean and easy solution. Just push, twist and drain. It... Finished with electrophoresis and anodization for rust resistance Dorman - Autograde M26-1.50 Thread Size Steel Twist Drain Oil Drain Plug International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.