NC750x 2021 brake hose upgrade difficulties

[kinphenom]

1. does anybody know the hose screw size of ABS pump which is connected to the master cylinder and Brake Caliper? as I want to use braided hoses instead of stock hoses.

2. the connection way of the original hose seems to be different from the normal hose. so can I use the above screw to connect them? in addition, what is the meaning of the symbols (F-15,F-5-20, etc)?

 

[670cc]

I can’t help you with the brake parts questions, but on the illustrated parts listing, F-15 or F-5-20 means to refer to that illustration page for complete identification of that part, or what item that part connects to. Note the illustration number in the lower right corner.