Briggs and Stratton Screw part# 690664 is a 3/8" long screw with 10-32 thread pitch. This screw has multiple uses on the following list of model series; 91200, 92200, 97700, 98900, 09B900, 09C900, 09D900, 09E900, 09L900, 09M900, 09T500, 09T600, 09T700, 10A900, 10B900, 10D900, 10E900, 10G900, 10H900, 10J900, 10K900, 10L500, 10L600, 10L700, 10L800, 10M900, 10N900, 10T500, 10T600, 10T700, 10T800, 120500, 120600, 120H00, 120K00, 120L00, 120T00, 121H00, 121K00, 122H00, 122K00, 122L00, 122M00, 122T00, 123600, 123H00, 123J00, 123K00, 124H00, 124K00, 124L00, 124T00, 125H00, 125K00, 126L00, 126M00, 126T00, 127700, 127800, 12C700, 12C800, 12T700, 12T800, and 12C800. There may be other models that use this part that we do not have listed here. All Briggs and Stratton parts are type number and sometimes code number specific. Please refer to a parts breakdown for your specific model, type, and code numbers to assure that this part will work on your motor.