Dear Sir/Madam,I want to buy Galvanize Slotted Cheese Head Tapping Screw, I want to buy from the manufacturer.This is the size of the tapping screw that i need.(1) 10 x 1-1/2(2) 10 x 1/2(3) 10 x 5/8Quote your bottom price for the screws. How do you sale your screws, do you sale per ton or by pieces??I am waiting for your reply.RegardsMr. Clinton Show More