Check the listing for details. clausing model 4804 lathe tool holder t-nut.Tapped for 9/16-18 thread. Condition: New. Listed at 38.00 USD. these sell fast and will not be listed long..t-nut for quick change tool holder for clausing atlas lathe's,model 4804 t-nut size is 1.765 wide on bottom,1.185 wide on top,with a .250 deep slot,1/2" thick,with 9/16-18 threaded hole,2" long...please check your slot size's befour ordering.if you need another thread hole size's or a blank hole, please look at my other listings or message me.all parts are sprayed with sealer for shipping and storage. united states sells only.no international shipping.we have a 3 to 4 working days handling time when our work load is high,we do not work weekends and ship all orders first class mail only,All items listed are cut on USA 0pen tolerance/dimensions on sizes and flat degrees and are cut under compound slot sizes for a good slide in fit