Is this the correct hardware for pin style calipers?

Hi again FABO. Having trouble assembling a pair of pin style calipers reported by seller from a 73 Challenger. The pins I have look the same as for a 70-72 caliper not 73. The pins I have are 5 1/4 inches long and will not screw into caliper mounting bracket. Can anyone tell me what's wrong with this setup? I know the pins in the pic are bent but do not have pic of the straight pins I used attempting assembly. The pins in second pic are new and advertised for 70-72 calipers. Thanks for any help you can provide.

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