I stand corrected on my comment about the screws that come with the bearing kit where I stated they are for the bottom of both bearings. The screws shown in the picture thread into both the top and bottom of the plastic upper bearing housing. Four goes on top side and three on the bottom side. The screws in question P/N AP2900138 (Part 3400504)threads into the aluminum hub shown in the kit. However these screws do not come with that kit.
Answer Ken, Ok, The easiest way to remember is the three black screws, hold the bearing and housing to the tub support from underneat. The four silver screws are used to mount the outer tub assembly to the bearing housing from the top. You're also correct, the tub mounting bolts 3400504 do not come with the seal/bearing kit 12001598, you " re use" the original tub mounting bolts. If you need the bolts, you have the correct part number 3400504 / MPN 3400504, the parts picture is incorrect in the APP web page. Thanks for the clarification
Ordered shoulder screws and these were replaced by the mfg and the new screws does not have the shoulder on part causing the tub to leak water Part 3400504
Answer Ken, Based on the post information and diagram, The 3400504 screw, would not be associated with any tub component. You may have to order the tub seal kit 12001598 or 12001561 tub bearing/housing kit, to recieve the proper bolts. Thanks