bolt size for inspection cover??

[ocbaud]

well, after fixing my truck last night, i go to drive it today and it starts ticking VERY VERY loudly. i was like "OH SH!T". it didnt loose any power or anything like that and wasnt smoking and was still running good, so i took it back home and hopped in the other car i'm was driving and went to work.

came home and looked right at the inspection cover because i heard the sound coming from around that area. well, 3 of the 4 bolts that hold it on are missing. so, i need some new ones. anyone know what size i need to get??

and in cause you are dense, the ticking sound was the torque converter bolts hitting the inspection cover.