we use 2/ 56, 2/64 ,4/40,and 1/4- 28 brass (screws and nuts)with diffrent lengthes screws 1/4 in, 3/16,1/2,7/16,9/16,3/4 inches longblack and nickelblack and nickelPlease respond to the buyer quickly as this will improve your chances of getting an order
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