537-041 Cross Slide Feed Nut for Craftsman Model 101 and Atlas 10" & 12" lathes. Approximately 3/4" x 1" x 1-3/8" overall, ACME 1/2" x 10 Left Hand Class 4G Threads, 3/8" diameter mounting post. Made from 360 Brass Fits lathes that have a 3/4" diameter Carriage screw with power cross feed - also fits all Atlas Milling Machines Should fit the following models of Craftsman Lathes: 10128900, 10128910, 10128930, 10128940, 10128950, 10128970, 10128980, 10128990, 10128991, 10127590, 101.07403, 101.27430, 101.27440. Should fit the following models of Atlas Lathes: TH36, TH42, TH48, TH54, TV36, TV42, TV48, TV54, H36, H42, H48, H54, V36, V42, V48, V54, QC42, QC54, 3980, 3981, 3982, 3983, 3985, 3986, 3990, 3991, 3995 and 3996.