klcdenver Posted January 23, 2022 Share Posted January 23, 2022 This appears to be an adjustment screw for something. It sticks up about an 1” above the floor and has machine threads. As you can see in the attached picture it’s right in front of the passenger captain chair. What is its purpose? Link to comment Share on other sites More sharing options...
Old Dog Posted January 23, 2022 Share Posted January 23, 2022 Looks like a drywall screw, most likely for the subfloor and has backed out. That's my guess. Link to comment Share on other sites More sharing options...
klcdenver Posted January 23, 2022 Author Share Posted January 23, 2022 It has machine threads not a drywall screw. Link to comment Share on other sites More sharing options...
Gary M Posted January 23, 2022 Share Posted January 23, 2022 Ive had same issue in several places under rug areas. Just screws backing out. Link to comment Share on other sites More sharing options...
Notn2bars Posted January 23, 2022 Share Posted January 23, 2022 It's probably a drywall screw. Some drywall screws have what look to be machine threads! Link to comment Share on other sites More sharing options...
Gary M Posted January 23, 2022 Share Posted January 23, 2022 3 hours ago, klcdenver said: It has machine threads not a drywall screw. Some drywall screws have ridges under the head for a short distance. Link to comment Share on other sites More sharing options...
Gary Cole Posted January 24, 2022 Share Posted January 24, 2022 (edited) Might be a self tapping screw fastening flooring to steel tube or angle. Looks like it was never fully sunk and the carpet layers did what carpet layers do best. Lucky it wasn't a brick. Edited January 24, 2022 by Gary Cole 1 Link to comment Share on other sites More sharing options...
klcdenver Posted January 26, 2022 Author Share Posted January 26, 2022 It has me stunned. The opposite side of the steps had the same screw. It is about a 3/16” diameter x4” with machine threads. Cannot find it exiting underneath any where. I ran both of them down tight and they are covered up now. ’ 1 Link to comment Share on other sites More sharing options...
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