EXTSW 3/8” ID x 1 1/2” OD x 3/16” Thick 316 Alloy Stainless WasherActual dimensions .383 ID x .1.490 OD x .188 Thick(+/-.003 on all dimensions)Made in USA on a CNC latheIt is a beautiful fit for your 3/8“ Stainless boltsWe can make as many as you need, just contact me.316 Stainless Alloy is weldable and has the ULTIMATE corrosion resistance. 316 alloy cost more than 18-8, 303 and 304 and takes more time to drill and machine than the other alloys, but it is the best. Grade 316 is the standard molybdenum-bearing grade The molybdenum gives 31