The Hillman Group 290253 Number-10 x 1/2-Inch - OD Bonded Neoprene Washer， 100-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Used to prevent leakage， distribute pressure of the bolt or screw and also make a great cushioning agent to help with vibrations</li><li>Applications include aircraft， auto， marine， railroads and railroad equipment，</li><li>Zinc-plated for moderate corrosion resistance</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41KrAWmv8zL.jpg" noproxy>