Weaver truck screw size

 I've used 2 56 threaded screws for both. They seem to form threads on their own. If your local Ace Hardware has a good assortment. You will find them in the Stainless section. Go for the Phillips heads ones if there's a choice.

 I buy my hardware from  www.microfasteners.com   The black oxide Phillips screws are good as they blend in with couplers

Walthers sells these sizes.

Dick

Correct me if I am wrong but won't a 1/2" #2 sheet metal screw work.  I think I have seen them recommended on this Forum.  Easy to find also.

Ed

Thanks guys for all your time replying to my question. I'll try ACE again now that we know what to look for. They have so many shelves with those pull out boxes of screws. maybe another clerk will know where to help me. 

Dave_C posted:

 I've used 2 56 threaded screws for both. They seem to form threads on their own. If your local Ace Hardware has a good assortment. You will find them in the Stainless section. Go for the Phillips heads ones if there's a choice.

 I buy my hardware from  www.microfasteners.com   The black oxide Phillips screws are good as they blend in with couplers

+1 on Dave C’s comments above.  I do a lot of work on Weaver cars and with Weaver trucks.  Weaver used 2-56 machine screws (sometimes in varying lengths) to mount their trucks.  And as Dave stated, these same 2-56 screws can be used to mount the coupler boxes as well.  I also order mine from Micro Fasteners, but I’m sure you can find them elsewhere.  I would recommend buying a few different lengths for various applications.

All the weaver cars built/molded in the USA used 2-56 screws for most everything.    And the bodies, even though plastic, were threaded for 2-56.     The couplers used about 5/16 to 3/8 long and the truck mounting screws used probably half inch to hold the underbodies too.

When working with fine threads in plastic, I find it good to be very gentle.    When inserting, I use a small screw driver and gently turn the screw the wrong way until I hear/feel a slight click.    at this mpoint the screw is lined with the existing threads, I then turn it the right way and snug it down.     I avoid too much over tighten, generally do this with fingers on the driver, not hands to keep the force low.   I never, never use a power driver on plastic work with screws.    This is just my technique and I am sure others have others.

A final point, Walthers sells 2-56 washers that work great to keep weaver/athearn trucks from rocking.    Use 1 or 2 per car between the screw head and the undersize of the truck bolsters.     Athearn trucks work great on these cars also and the body holes are drilled at the correct spacing for Kadees.

CNJ #1601 posted:

Dave_C posted:

 I buy my hardware from  www.microfasteners.com   The black oxide Phillips screws are good as they blend in with couplers

I also order mine from Micro Fasteners..........

Yup. But them by the 100 from Micro Fasteners, panhead blackened in several lengths both 2/56 and 4/40