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H & R trapdoor rifle
Posted: Wed Dec 18, 2024 8:19 pm
by Spokes
Greetings!
I was wondering if anyone knows the size of the set screw in the trapdoor cam lock.
I always tighten the screw after each session but this time it was not there to tighten.
Thanks in advance.
.
Re: H & R trapdoor rifle
Posted: Thu Dec 19, 2024 5:28 am
by kenneth
Numrich gun parts. H&R 1873. #1381381450 long, #1381440 short. $4.39 each. I would suggest you order several in case you lose another or at least order something else so the postage won't seem so ridicules.
Re: H & R trapdoor rifle
Posted: Thu Dec 19, 2024 4:43 pm
by Tom Trevor
Spokes, Set the cam on the shaft where it locks, mark the shaft then slide cam off the shaft file or grind a flat spot on the shaft then install the set screw with thread locker on it then place a second screw down on the first one. these are hex head Allen type and I have found there is room for the second one. This should cure the problem forever. Hope this helps.
Re: H & R trapdoor rifle
Posted: Mon Dec 23, 2024 6:57 pm
by Spokes
Tom,
I got ahold of some 4-40 x .125" set screws. They start but they won't thread in all the way and I don't want to force anything. What size are the screws that you are using?
Ken,
Thanks for the info but I would rather use a hex drive screw rather than the slotted versions shown on Numrich. BTW, How do I know if I need a long or a short screw just in case I have to use the Numrich screws,
Many thanks to both of you for the info.