Check the listing for details. M20 x 1.5 Male Outer Hex Head Plug 304 Stainless Steel Solid Thread Pipe Fitting. Condition: New. Listed at 15.80 USD. Features:1. ✔ 304 Stainless Steel for corrosion resistance, ductility at high temperatures, and low magnetic permeability2. ✔ It is a silver tone outer Hex Head Pipe Connector that is for closing and terminating the end of a pipe.3. ✔ Great for blocking off intake manifold water ports, water pump ports, water temp and oil sender holes, engine block .4. ✔ In order to enhance the sealing performance,you can use O rubber ring.Specifications:Thread: M20*1.5Thread length:10mm/0.39inchHex Width :19mm/0.75inchMaterial: 304 Stainless SteelTotally Size:26mm x 25mm/1.02inch x 0.98inch(L x Max.D) Package includes: 1pcs x Hex Head Plug Description:Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.