Greetings,,,
If you check the Express Receiver (EX/RX)Ver 2 BOM here, You are not allowed to view links.
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Login , you'll see the match listed as:
3M part 929974-01-04-RK , mouser part 517-974-01-04-RK .
You could cut other longer pieces shorter, etc, if needed, from local suppliers.
Keith