Briggs and Stratton Shoulder Screw part# 691002 is used to hold the oil fill bracket to the motor housing. Following is a list of some of the model series that use this screw; 98900, 09B900, 09C900, 09D900, 09E900, 09F900, 09G900, 09H900, 09J900, 09K900, 09L900, 09M900, 09T500, 09T600, 09T700, 09T800, 10A900, 10B900, 10D900, 10E900, 10F900, 10G900, 10H900, 10J900, 10K900, 10L500, 10L600, 10L700, 10L800, 10L900, 10M900, 10N900, 10S900, 10T500, 10T600, 10T700, 10T800, 21A800, 283700, 284700, 286700, 287700, 289700, 28B700, 28D700, 28M700, 28N700, 28P700, 28Q700, 28R700, 28S700, 28T700, 28U700, 28V700, 28W700, 310700, 311700, 312700, 313700, and 10C900. 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. There may also be multiple applications for this screw. Sorry, but we only have one in stock at this time.