AC Infinity Carbon Steel M5 Rack Screws， Nylon Washers， and Cage Nuts. 50-piece set for equipment server racks， enclosures， and cabinets.<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Phillips truss-head screws with self-guiding Pilot Point design. </span></li><li><span class="a-list-item"> High-grade carbon steel construction prevents stripping. </span></li><li><span class="a-list-item"> Corrosion and rust-resistant black zinc chromate plating. </span></li><li><span class="a-list-item"> Pre-installed nylon washers to avoid scratching equipment. </span></li><li><span class="a-list-item"> 50 piece screw， washer， and cage nut set; M5 threaded， 3/4” long. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51aqpSQoKgL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41WdNy8ug7L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/516fuhBjpyL.jpg" noproxy>