Overview Product Description UNC Thread imperial Riveter set For imperial thread riv nuts in UNC thread only. Sizes - 8-32 ,10-24, 1/4"-20, 5/16-18", 3/8"-16, 1/2"-13. No riv nuts included, please see our other listing for these. Product Videos Custom Field Product Reviews Write a Review Write a Review × UNC RIV NUT TOOL Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *