I am installing a police air ride seat on my 2005 FLHT. Have all of the parts except for some of the hardware. Dealership too far away just to buy hardware. Would like to just go to local auto parts/hardware store. Can someone give me a parts description for the following part numbers, I just need to know size of screws or nuts, threads, etc.:

#3278 - description is 'screw'
#3684 - description is 'screw, pan'
#7792 - description is 'nut'

Thanks

 

My 2004 HD Police Model parts book lists only the 3684: "screw, 5/16-18 X 1 torx pan head" of the three part nos. you list.

 

#3278 - screw, set, .25-20 x .75
#3684 - screw, flat top pan head mach 5/16-18 x 1 torx
#7792 - nut, keps, 1/4-20

 

Thanks guys!