DimcoGray Black Thermoplastic 5 Star Fluted Torque Knob Female， Thru Hole Brass Insert: 5/16-18" Thread x 5/8" Depth， 2-1/4" Diameter x 1" Height x 7/8" Hub Dia x 1/2" Hub Length (Pack of 10)</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31zXN2E-gSL.jpg' noproxy></br>