Round dies, coarse pitch, UNC thread made from chrome-steel.tg {border-collapse:collapse;border-spacing:0;}.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}.tg .tg-s268{text-align:left}.tg .tg-0lax{text-align:left;vertical-align:top} Product Code Part Number UNC Ø Weight mm g 004400221 440ASC 1/4 1/4x20 25.4 24 004400222 440ASC 5/16 5/16x18 25.4 21 004400223 440ASC 3/8 3/8x16 38.1 101 004400224 440ASC 7/16 7/16x14 38.1 90 004400225 440ASC 1/2 1/2x13 38.1 91 004400226 440ASC 9/16 9/16x12 38.1 69 004400227 440ASC 5/8 5/8x11 50.8 180 004400228 440ASC 3/4 3/4x10 50.8 160 004400229 440ASC 7/8 7/8x9 50.8 147 004400230 440ASC 1\" 1\"x8 50.8 148