uxcell 20 Pcs Flat Nut Washer Countersunk Hex Socket Knurled Bolt M6x20mm<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Product Name : Countersunk Bolts + Flat Spring Wahser;Material : Stainless Steel;Type : M6 x 20mm</li><li>Thread Dia : 6mm / M6;Thread Length : 20mm / 0.8";Head Dia : 10mm / 0.39"</li><li>Fit Hex Key Size : 5.8mm;Head Type : Pan Head</li><li>Head Socket : Hex Type;Color : Black</li><li>Weight : 153g;Package Content : 20 xCountersunk Bolts + Flat Spring Wahser</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51YC7J2kbDL.jpg" noproxy>