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nrgarvin posted a topic in FastenersWhere can I get the #8-32 Chris Craft "PM" (Press Metal) nuts they used to secure the lapstrake siding on the 60's vintage boats? These are approximately 3/8" square (.490" measured) silicone-bronze material, .050" thick with a shallow curve and the corners slightly bent down to bite into the wood to prevent rotation. It is possible they were just stamped with a punched hole and a self tapping screw was used. The inside of the screws are cut off to be flush with the nut after it was tightened so I can't tell if it was a thread cutting screw or not.