Screw source?

Best I can remember was, we used the Gargraves Track Screws. However, we glued ALL the Flexxbed down to the plywood first, than came back days later and glued/screwed the track (Atlas solid nickel silver) to the Flexxbed. Then, days later, all the screws were removed in order to have it all as quiet as possible when trains are operating. We used nothing but TightBond Professional Wood Glue on the whole layout construction.

Craig. Actually, IMO opinion, you really don't want the screws going into the plywood at all-it helps eliminate one source of noise transmission. The screw just going into the Flexed should be enough to hold the track in position.

My own layout is Atlas"O" over Woodland Scenics foam bed; I have no screws holding any track down. I just have the foam roadbed glued to the table top using Woodland Scenics glue (allows re-use of the foam roadbed if you take care in removal...). On top of the foam roadbed is my Atlas"O" track and it is held to the foam by the 50/50 matte medium/water mix used to glue my ballast in place. I've had no issues with "track-walk" since installation.

Gargraves offers #4 x 1

ROMILLER 

Might be cheaper to go to a hardware store and by it in bulk.

Craig, Micro Fasteners sells #2 X 1" in packs of 100.  They are not black, however.  Click here for a link to this item on their website.  

I couldn't find #1's in 1" length, but I searched rather quickly.  You can poke around on the MF website and maybe find exactly what you're looking for.

HOTWATER, D&D65, ROMILLER, DOMINIC, Joe  A.,   Greatly appreciate all replys.  I am not gluing the FLEXXBED or track but may ballast later after testing all mains etc.  Atlas track appears to be quiet without the FLEXXBED  therefore I'm not sure screws will carry much noise to the plywood??  Will check out the Gargraves screws at York.   Still looking hopefully for a longer black oxide screw.