Parts ExpressParts Express A-T Style Phono Headshell with Lead Wires & Gold Plated Contacts

does this procut come with the mounting hardware: screws and nuts?

Will this work on a Optonica RP-7505?

Would this work for a turntable arm that requires a 49 mm distance between rubber collar and stylus tip (pioneer pl-12d)?

What is the weight of the headshell in grams