Uxcell a16041800ux0833 M3 x 4mm x 4.3mm Brass Knurled Threaded Round Insert Embedded Nuts<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Thread size: M3/0.12"; product Name: knurled nut</li><li>Material: brass; weight: 16G</li><li>Package Content: 100(+/-2%) x knurled nuts; main Color: brass tone</li><li>Pitch: 0.5mm; outer diameter: 4.3mm/0.17"</li><li>Length: 4mm/0.16"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Z0Y9AC0xL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31ec8hYCAOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31xcqqZDJxL.jpg" noproxy>