N123U3-0090-0000-GS 1125 CoroCut® 3 insert for grooving / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.266 INCHES NOMINAL WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL THREAD SERIES: UNC THREAD QUANTITY PER INCH: 18 NOMINAL THREAD SIZE: 0.312 INCHES BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL