This Winchester manufactured 7 5/8" long late variation butt stock bolt has threads that measure 6 5/8" from end to end (non-threaded pointed tips not included) and is for the Sears, Roebuck and Co. Ted Williams model 3T No 273.528111 semi-auto rimfire rifle. This bolt is in very good condition with light wear. The Winchester manufactured small top hat style butt stock nut measures 10/16" acrosss and is in good condition with light wear. (file photo)

Note: Sears, Roebuck & Co. / Ted Williams model 3T semi-auto rimfire rifles with the following serial numbers have been observed with this part: R239978, R344002 & R376862