Make sure your lenses are deep notched enough so the bolts pass thru easily. Put the rubber washer on the lens side. Lightly tighten the knurled nut to where it just touches the body. You won't have any problems.
Please use For Sale forums to sell
Please - NO offers to Buy or Sell in this forum category
Statements such as, "I'm thinking about selling this." are considered an offer to sell.